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Chhabra M, Ben-Eltriki M, Paul A, Lê ML, Herbert A, Oberoi S, Bradford N, Bowers A, Rassekh SR, Kelly LE. Cannabinoids for symptom management in children with cancer: A systematic review and meta-analysis. Cancer 2023; 129:3656-3670. [PMID: 37635461 DOI: 10.1002/cncr.34920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/20/2023] [Accepted: 05/02/2023] [Indexed: 08/29/2023]
Abstract
BACKGROUND Despite the widespread use of medical cannabis, little is known regarding the safety, efficacy, and dosing of cannabis products in children with cancer. The objective of this study was to systematically appraise the existing published literature for the use of cannabis products in children with cancer. METHODS This systematic review, registered with the International Prospective Register of Systematic Reviews (CRD42020187433), searched four databases: MEDLINE, Embase, PsycINFO, and the Cochrane Library. Abstracts and full texts were screened in duplicate. Data on types of cannabis products, doses, formulations, frequencies, routes of administration, indications, and clinical and demographic details as well as reported efficacy outcomes were extracted. Data on cannabinoid-related adverse events were also summarized. RESULTS Out of 34,611 identified citations, 19 unique studies with a total of 1927 participants with cancer were included: eight retrospective chart reviews, seven randomized controlled trials, two open-label studies, and two case reports. The included studies reported the use of various cannabis products for the management of symptoms. Cannabinoids were commonly used for the management of chemotherapy-induced nausea and vomiting (11 of 19 [58%]). In controlled studies, somnolence, dizziness, dry mouth, and withdrawal due to adverse events were more commonly associated with the use of cannabinoids. Across all included studies, no serious cannabis-related adverse events were reported. CONCLUSIONS Although there is evidence to support the use of cannabis for symptom management, in children with cancer, there is a lack of rigorous evidence to inform the dosing, safety, and efficacy of cannabinoids. Because of the increasing interest in using cannabis, there is an urgent need for more research on medical cannabis in children with cancer.
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Affiliation(s)
- Manik Chhabra
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Mohamed Ben-Eltriki
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Arun Paul
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Mê-Linh Lê
- Neil John Maclean Health Sciences Library, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Anthony Herbert
- Queensland Children's Hospital, Children's Health Queensland, Brisbane, Queensland, Australia
- Cancer and Palliative Care Outcomes Centre, Queensland University of Technology, South Brisbane, Queensland, Australia
| | - Sapna Oberoi
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Pediatric Hematology-Oncology, CancerCare Manitoba, Winnipeg, Manitoba, Canada
- CancerCare Manitoba Research Institute, CancerCare Manitoba, Winnipeg, Manitoba, Canada
| | - Natalie Bradford
- Cancer and Palliative Care Outcomes Centre, Queensland University of Technology, South Brisbane, Queensland, Australia
| | - Alison Bowers
- Cancer and Palliative Care Outcomes Centre, Queensland University of Technology, South Brisbane, Queensland, Australia
| | - S Rod Rassekh
- Division of Pediatric Hematology/Oncology/BMT, Department of Pediatrics, Faculty of Medicine, University of British Columbia, Vancouver, Manitoba, Canada
| | - Lauren E Kelly
- Department of Pharmacology and Therapeutics, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba, Canada
- Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
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Vaillancourt R, Moreno M, Pouliot A, Sell E. Cannabis Use for Therapeutic Purposes by Children and Youth at a Tertiary Teaching Hospital in Canada: A Retrospective Chart Review. Can J Hosp Pharm 2020; 73:105-115. [PMID: 32362667 PMCID: PMC7182376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND The study of the use of cannabis for therapeutic purposes in the pediatric population is increasing, yet data on efficacy and safety are limited. Characterization of pediatric cannabis use for therapeutic purposes will improve understanding of the circumstances under which it occurs and the associated outcomes. OBJECTIVE To describe the use of cannabis for therapeutic purposes, regardless of authorization, in a pediatric tertiary teaching hospital. METHODS A retrospective chart review was completed for patients 18 years of age or younger who used cannabis for therapeutic purposes, regardless of authorization, between May 1, 2014, and May 1, 2017. Patients whose cannabis use was documented as recreational were excluded. RESULTS In total, 300 patients were identified, of whom 37 met the inclusion criteria. Of these, 30 patients had documentation of medically supervised cannabis use. Most were using cannabis for seizures (n = 28), and many of these (n = 23) were patients with seizures described as intractable or refractory. Of the 27 patients who were experiencing seizures at initiation of medical cannabis, 21 had documentation of a decrease in seizure frequency. This decrease was transient for 16 patients, with a mean duration of 130.4 days (standard deviation 99.1 days). Seven patients self-medicated with cannabis. They obtained cannabis without authorization and used it for chronic pain (n = 5) and/or anxiety (n = 5). CONCLUSIONS Medically supervised cannabis use occurred most often in patients with intractable or refractory seizures. According to these data, seizure response is variable, and initial decreases may be transient for pediatric patients using cannabis. To ensure greater consistency and rigour in the conduct of prospective research and thus to generate better-quality research on the therapeutic effects of medical cannabis, development of a standardized care record is needed.
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Affiliation(s)
- Régis Vaillancourt
- , OMM, CD, BPharm, PharmD, FCSHP, is with the Department of Pharmacy, Children's Hospital of Eastern Ontario, Ottawa, Ontario, PharmD, is with the Leslie Dan School of Pharmacy, University of Toronto, Toronto, Ontario, PhD, was, at the time this study was conducted, with the Department of Pharmacy, Children's Hospital of Eastern Ontario, Ottawa, Ontario, MD, is with the Faculty of Medicine, University of Ottawa, Ottawa, Ontario
| | - Maria Moreno
- , OMM, CD, BPharm, PharmD, FCSHP, is with the Department of Pharmacy, Children's Hospital of Eastern Ontario, Ottawa, Ontario, PharmD, is with the Leslie Dan School of Pharmacy, University of Toronto, Toronto, Ontario, PhD, was, at the time this study was conducted, with the Department of Pharmacy, Children's Hospital of Eastern Ontario, Ottawa, Ontario, MD, is with the Faculty of Medicine, University of Ottawa, Ottawa, Ontario
| | - Annie Pouliot
- , OMM, CD, BPharm, PharmD, FCSHP, is with the Department of Pharmacy, Children's Hospital of Eastern Ontario, Ottawa, Ontario, PharmD, is with the Leslie Dan School of Pharmacy, University of Toronto, Toronto, Ontario, PhD, was, at the time this study was conducted, with the Department of Pharmacy, Children's Hospital of Eastern Ontario, Ottawa, Ontario, MD, is with the Faculty of Medicine, University of Ottawa, Ottawa, Ontario
| | - Erick Sell
- , OMM, CD, BPharm, PharmD, FCSHP, is with the Department of Pharmacy, Children's Hospital of Eastern Ontario, Ottawa, Ontario, PharmD, is with the Leslie Dan School of Pharmacy, University of Toronto, Toronto, Ontario, PhD, was, at the time this study was conducted, with the Department of Pharmacy, Children's Hospital of Eastern Ontario, Ottawa, Ontario, MD, is with the Faculty of Medicine, University of Ottawa, Ottawa, Ontario
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Pringsheim T, Okun MS, Müller-Vahl K, Martino D, Jankovic J, Cavanna AE, Woods DW, Robinson M, Jarvie E, Roessner V, Oskoui M, Holler-Managan Y, Piacentini J. Practice guideline recommendations summary: Treatment of tics in people with Tourette syndrome and chronic tic disorders. Neurology 2019; 92:896-906. [PMID: 31061208 DOI: 10.1212/wnl.0000000000007466] [Citation(s) in RCA: 205] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 11/21/2018] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE To make recommendations on the assessment and management of tics in people with Tourette syndrome and chronic tic disorders. METHODS A multidisciplinary panel consisting of 9 physicians, 2 psychologists, and 2 patient representatives developed practice recommendations, integrating findings from a systematic review and following an Institute of Medicine-compliant process to ensure transparency and patient engagement. Recommendations were supported by structured rationales, integrating evidence from the systematic review, related evidence, principles of care, and inferences from evidence. RESULTS Forty-six recommendations were made regarding the assessment and management of tics in individuals with Tourette syndrome and chronic tic disorders. These include counseling recommendations on the natural history of tic disorders, psychoeducation for teachers and peers, assessment for comorbid disorders, and periodic reassessment of the need for ongoing therapy. Treatment options should be individualized, and the choice should be the result of a collaborative decision among patient, caregiver, and clinician, during which the benefits and harms of individual treatments as well as the presence of comorbid disorders are considered. Treatment options include watchful waiting, the Comprehensive Behavioral Intervention for Tics, and medication; recommendations are provided on how to offer and monitor these therapies. Recommendations on the assessment for and use of deep brain stimulation in adults with severe, treatment-refractory tics are provided as well as suggestions for future research.
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Affiliation(s)
- Tamara Pringsheim
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Michael S Okun
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Kirsten Müller-Vahl
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Davide Martino
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Joseph Jankovic
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Andrea E Cavanna
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Douglas W Woods
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Michael Robinson
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Elizabeth Jarvie
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Veit Roessner
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Maryam Oskoui
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - Yolanda Holler-Managan
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
| | - John Piacentini
- From the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences (T.P., D.M.), Cumming School of Medicine, University of Calgary, Alberta, Canada; Departments of Neurology and Neurosurgery (M.S.O.), Fixel Center for Neurological Diseases, University of Florida, Gainesville; Department of Psychiatry, Social Psychiatry, and Psychotherapy (K.M.-V.), Hannover Medical School, Germany; Department of Neurology (J.J.), Baylor College of Medicine, Houston, TX; Department of Neuropsychiatry (A.E.C.), BSMHFT, University of Birmingham and Aston University, UK; Department of Psychology (D.W.W.), Marquette University, Milwaukee, WI; Massachusetts Chapter (M.R.), Tourette Association of America, Bayside, NY; Waisman Center (E.J.), University Center for Excellence in Developmental Disabilities, University of Wisconsin, Madison; Technische Universitaet Dresden (V.R.), Germany; Departments of Pediatric and Neurology/Neurosurgery (M.O.), McGill University, Montréal, Canada; Department of Pediatrics (Neurology) (Y.H.-M.), Northwestern University Feinberg School of Medicine, Chicago, IL; and Department of Psychiatry and Biobehavioral Sciences (J.P.), Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles
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