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David R, Davelman J, Mechoulam H, Cohen E, Karshai I, Anteby I. Strabismus developing after unilateral and bilateral cataract surgery in children. Eye (Lond) 2016; 30:1210-4. [PMID: 27472210 DOI: 10.1038/eye.2016.162] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 06/29/2016] [Indexed: 11/09/2022] Open
Abstract
PurposeTo evaluate the prevalence and risk factors of strabismus in children undergoing surgery for unilateral or bilateral cataract with or without intraocular lens implantation.MethodsMedical records of pediatric patients were evaluated from 2000 to 2011. Children undergoing surgery for unilateral or bilateral cataract with at least 1 year of follow-up were included. Children with ocular trauma, prematurity, or co-existing systemic disorders were excluded. The following data were evaluated: strabismus pre- and post-operation; age at surgery; post-operative aphakia or pseudophakia; and visual acuity.ResultsNinety patients were included, 40% had unilateral and 60% had bilateral cataracts. Follow-up was on average 51 months (range: 12-130 months). Strabismus was found preoperatively in 34.4% children, and in 43.3% children at last follow-up. Strabismus developed in 46.2% of children who were orthotropic preoperatively, whereas 32.3% of children who had strabismus before surgery became orthotropic. Strabismus occurred after unilateral or bilateral cataract surgery in 63.9% and 29.6% children, respectively. At the last follow-up, strabismus was found in 46.7% of aphakic and 58.7% of pseudophakic children (P=0.283). Children who developed strabismus were generally operated at a younger age as compared with those without strabismus (mean of 25.9 vs 52.7 months, P<0.001). Final visual acuity was inversely correlated with prevalence of strabismus.ConclusionStrabismus is a frequent complication after cataract surgery in children. Risk factors include unilateral cases and young age at surgery. No correlation was found between prevalence of strabismus and use of intraocular lens. Strabismus was more common in children with poor final visual acuity.
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Cohen E, Hansen T, Itzhaki N. From entanglement witness to generalized Catalan numbers. Sci Rep 2016; 6:30232. [PMID: 27461089 PMCID: PMC4962043 DOI: 10.1038/srep30232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 07/01/2016] [Indexed: 11/22/2022] Open
Abstract
Being extremely important resources in quantum information and computation, it is vital to efficiently detect and properly characterize entangled states. We analyze in this work the problem of entanglement detection for arbitrary spin systems. It is demonstrated how a single measurement of the squared total spin can probabilistically discern separable from entangled many-particle states. For achieving this goal, we construct a tripartite analogy between the degeneracy of entanglement witness eigenstates, tensor products of SO(3) representations and classical lattice walks with special constraints. Within this framework, degeneracies are naturally given by generalized Catalan numbers and determine the fraction of states that are decidedly entangled and also known to be somewhat protected against decoherence. In addition, we introduce the concept of a “sterile entanglement witness”, which for large enough systems detects entanglement without affecting much the system’s state. We discuss when our proposed entanglement witness can be regarded as a sterile one.
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Ballantyne M, Sozer A, Orava T, Bernardo S, McPherson A, Church P, Fehlings D, Cohen E. Improving Transition Practices: Understanding Family Experiences and Needs in Transitioning Their Child to Developmental/Rehabilitation Services. Paediatr Child Health 2016. [DOI: 10.1093/pch/21.supp5.e56b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND: Children born preterm (<37 weeks) with cerebral palsy (CP) have long-term complex medical needs that require transitions between multiple healthcare services, necessitating parental support. The experiences of parents undergoing early transitions from the neonatal intensive care unit (NICU) to neonatal follow-up clinics (NFUC) to home are well-documented. Our prior research conducted found parents described positive transitions as: access to information, feeling involved in care and witnessing improvement in their child’s health outcomes post-transition. Negative experiences entail: unanticipated differences between healthcare services, feeling separated from their child and having inadequate information. Unfortunately, the next transition from children with CP born preterm (<37 weeks) to developmental/rehabilitation services (DRS) is grossly under-studied and knowledge from well-studied healthcare transitions has yet to be applied to this population.
OBJECTIVES: To identify and describe the experience and needs of parents of children with CP born preterm, as they transition from NFUC to DRS. Additionally, to make recommendations building upon characteristics of supportive/positive transition experiences to meet the emotional, informational, and instrumental needs of parents during transition to DRS.
DESIGN/METHODS: A descriptive qualitative study was conducted recruiting English-speaking parents of children born preterm with CP that required NICU hospitalization, and DRS post CP diagnosis. Purposeful and maximum variation strategies were used to recruit a sample of 15 parents. To ensure rigor, sampling continued until data saturation was reached. Interviews were audio-recorded, transcribed verbatim, coded using NVivo 10 software and underwent thematic analysis. Data collection and analyses were performed concurrently, with themes from early interviews incorporated, collapsed and used to inform later interviews.
RESULTS: A majority of participants were mothers, whose child had received DRS for the past one to 12 years. Preliminary themes iterated by parents’ transition experiences included: Poor communication of diagnosis caused anxiety surrounding transition of care; a lack of timely access to appropriate care and resources negatively affected parents’ experiences; continuity and consistency of healthcare providers improved families’ perception of accessibility to care; and social support was desired throughout the transition period.
CONCLUSION: The transition between NFUC and DRS for families with CP is significant, but lacks best practice research to advise care. Preliminary recommendations derived from data reveal the need to better support families earlier on in the transition process, beginning at the NFUC. Further research is required to identify best practices to strengthen communication, family involvement, continuity of care, and timely access to informational supports for parents.
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Adams S, Nicholas D, Weiser N, Mahant S, Kanani R, Boydell K, Cohen E. An Exploration of Care Mapping Among Families of Children with Medical Complexity (CMC). Paediatr Child Health 2016. [DOI: 10.1093/pch/21.supp5.e63d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
BACKGROUND: A care map is a visual diagram that illustrates all of the resources needed to support a child with medical complexity, providing a contextualized view of the child in a broader health network. It is believed that health care providers (HCPs) can utilize care maps to enable child and family centered care by helping families prioritize and coordinate their health needs. While the popularity of care maps has been growing, there is a paucity of research on their clinical usefulness.
OBJECTIVES: The objective of this study is to explore how care maps are constructed by parents, what they mean for parents and HCPs, and how they can be applied in a clinical setting.
DESIGN/METHODS: This is a qualitative study informed by a grounded theory approach. Theoretical sampling of parents and HCPs of CMC was utilized. Fifteen care map training sessions and forty-five semi-structured interviews with parents and HCPs of CMC were conducted. The data was coded and analyzed iteratively for predominant themes and emerging theory.
RESULTS: Both HCPs and parents strongly identified the care map [Figure 1] as a valuable tool in the care of CMC. Data analysis revealed key themes that demonstrated how and why care maps are useful. Care maps allow HCPs to recognize family experiences, identify parental goals of care and promote improved care coordination and communication. Parents described creating care maps as an empowering and therapeutic process that helped them to organize and communicate their complex interplay of supports. Both parents and HCPs acknowledged challenges associated with care mapping including the ability of parents to create a care map as well as the HCPs ability to independently interpret the care map’s meaning.
CONCLUSION: Care maps are a useful communication and coordination tool to demonstrate a contextualized view of a family’s narrative of their experience caring for a CMC. Findings may inform a model of how to utilize care maps in clinical practice.
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Elitzur AC, Cohen E. 1-1=Counterfactual: on the potency and significance of quantum non-events. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2016; 374:rsta.2015.0242. [PMID: 27091159 PMCID: PMC4843638 DOI: 10.1098/rsta.2015.0242] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/09/2016] [Indexed: 06/05/2023]
Abstract
We study the unique role played in quantum mechanics by non-events or 'counterfactuals'. Our earlier analysis of 'quantum oblivion' has revealed some subtle stages in the measurement process, which may end up in self-cancellation. To these findings, we now add two insights derived by two time-symmetric interpretations of quantum mechanics. (i) Like all quantum interactions, the non-event is formed by the conjunction of forward-plus-backward-evolving wave functions. (ii) Then, it is another feature of such dual evolutions, namely the involvement of negative masses and energies, that enables Nature to make some events 'unhappen' while leaving causal traces.
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Melotek J, Villaflor V, Karrison T, Brisson R, Blair E, Portugal L, Stenson K, De Souza J, Cohen E, Langerman A, Spiotto M, Seiwert T, Vokes E, Haraf D. Response-Adapted Volume De-escalation (RAVD) in Locally Advanced Head and Neck Cancer: Efficacy and Human Papillomavirus–Positive Subgroup Analysis. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2015.12.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Melotek J, Villaflor V, Karrison T, Brisson R, Blair E, Portugal L, Stenson K, de Souza J, Cohen E, Langerman A, Spiotto M, Seiwert T, Vokes E, Haraf D. Response-Adapted Volume De-escalation (RAVD) in Locally Advanced Head and Neck Cancer: Toxicity and Quality of Life Analyses. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2015.12.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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83
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Bauer M, Cohen E. The Skills of Engineers and Managers in Large French Firms. INTERNATIONAL STUDIES OF MANAGEMENT & ORGANIZATION 2016. [DOI: 10.1080/00208825.1980.11656284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hu C, Chan A, Gao L, Ahn MJ, Cohen E, Ang MK, Cheng Y, Hu Q, Kim SB, Li P, Sun Y, Fan B, Cheng G, Ehrnrooth E, Wang CH. 339TiP Phase III study of afatinib vs placebo as adjuvant therapy after chemo-radiotherapy (CRT) in primary unresected patients with locoregionally advanced (LA) head and neck squamous cell carcinoma (HNSCC) in Asia: LUX-Head & Neck 4 (LUX-H&N4). Ann Oncol 2015. [DOI: 10.1093/annonc/mdv527.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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85
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Yen C, Klochikhin A, Cohen E, Vermorken J, Harrington K, Tahara M, Ge J, Geib J, Jin F, Burtness B. 342TiP Phase 3 trial of pembrolizumab as a first-line treatment in subjects with recurrent/metastatic head and neck squamous cell carcinoma: KEYNOTE-048. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv527.29] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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86
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Tang P, Ahn MJ, Zhang Q, Chan A, Kim SB, Wang CH, He X, Guo W, Kang J, Dechaphunkul A, Li P, Kandil A, Cohen E, Hu GQ, Geng Y, Ehrnrooth E, Guo Y. 340TiP Phase III study of afatinib vs methotrexate (MTX) for second-line recurrent and/or metastatic (R/M) head and neck squamous cell carcinoma (HNSCC) patients after platinum-based chemotherapy (CT) in Asia/Middle East/North Africa: LUX-Head & Neck 3 (LUX-H&N3). Ann Oncol 2015. [DOI: 10.1093/annonc/mdv527.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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87
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Machiels JP, Shin S, Cohen E, Harrington K, Burtness B, Gause C, Swift A, Swaby R, Le Tourneau C. 343TiP Pembrolizumab (MK-3475) versus standard treatment in patients with recurrent or metastatic head and neck cancer: Methodology of phase 3 randomized trial. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv527.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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88
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Genizi A, Cohen E. The chemical composition and sensory flavour quality of ‘Mineola’ tangerines. II. Relationship between composition and sensory properties. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/14620316.1988.11515845] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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89
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Cohen E, Shuali M, Shalom Y. Effect of intermittent warming on the reduction of chilling injury of Villa Franka lemon fruits stored at cold temperature. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/00221589.1983.11515162] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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90
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Cohen E, Ben-Yehoshua S, Rosenberger I, Shalom Y, Shapiro B. Quality of lemons sealed in high-density polyethylene film during long-term storage at different temperatures with intermittent warming. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/00221589.1990.11516099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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91
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Harrington K, Machiels JP, Shin S, Cohen E, Burtness B, Gause C, Swift A, Swaby R, Le Tourneau C. Pembrolizumab (MK-3475) versus standard treatment in patients with recurrent or metastatic head and neck cancer: methodology of phase 3 randomized trial. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv514.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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92
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Melotek J, Villaflor V, Brisson R, Karrison T, Blair E, Portugal L, Stenson K, De Souza J, Cohen E, Langerman A, Spiotto M, Seiwert T, Vokes E, Haraf D. Response-Adapted Volume Deescalation (RAVD) in Locally Advanced Head and Neck Squamous Cell Cancer (LA-HNSCC): Toxicity and Quality of Life (QOL) Analyses. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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93
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Klochikhin A, Greil R, Cohen E, Vermorken J, Harrington K, Tahara M, Ge J, Geib J, Jin F, Burtness B. Phase 3 trial of pembrolizumab as a first-line treatment in subjects with recurrent/metastatic head and neck squamous cell carcinoma: KEYNOTE-048. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv514.01] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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94
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Melotek J, Villaflor V, Brisson R, Karrison T, Blair E, Portugal L, Stenson K, De Souza J, Cohen E, Langerman A, Spiotto M, Seiwert T, Vokes E, Haraf D. Response-Adapted Volume De-escalation (RAVD) in Human Papillomavirus-Positive Oropharyngeal Squamous Cell Cancer (OPX SCC). Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Advani S, Yang H, Savariar E, Adams S, Aguilera J, Lippman S, Cohen E, Tsien R. EGFR Targeted Delivery of Ultrapotent Radiosensitizers for Head and Neck Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Singer GA, Zielsdorf S, Fleetwood VA, Alvey N, Cohen E, Eswaran S, Shah N, Chan EY, Hertl M, Fayek SA. Limited hepatitis B immunoglobulin with potent nucleos(t)ide analogue is a cost-effective prophylaxis against hepatitis B virus after liver transplantation. Transplant Proc 2015; 47:478-84. [PMID: 25769595 DOI: 10.1016/j.transproceed.2014.11.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 11/19/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND Prophylaxis against hepatitis B virus (HBV) recurrence after orthotopic liver transplantation (OLT) includes lifelong hepatitis B immunoglobulin (HBIG) and oral antiviral agent(s). In the presence of high-genetic-barrier nucleos(t)ide analogues, the need for lifelong HBIG is questioned. We evaluated the safety and cost-effectiveness of a limited HBIG course. METHODS OLT from 2006 to 2013 were reviewed. Patients with pre-OLT hepatitis B virus surface antigen who received HBV prophylaxis with 2 HBIG doses (anhepatic and first post-operative day; 10,000 units/dose) and potent nucleos(t)ide analogues were included. The primary end point was HBV recurrence (HBV-DNA detection). RESULTS Thirteen patients (primary transplants) were included, median Model for End-Stage Liver Disease score was 18, and there was no fulminant failure; HBV-DNA was detected in 4 patients at OLT. After OLT, 10 patients received entecavir and/or tenofovir. Median follow-up was 23 months. One recurrence occurred (7.7%) at month 13 (HBV-DNA: 14 IU/mL); the graft maintained excellent function. This minimal viremic expression is related to hepatocellular carcinoma recurrence with neoplastic replication carrying integrated HBV-DNA; thus, there is no defined HBV viral recurrence. No graft loss or patient death was related to HBV recurrence. The 1-year patient and graft survival rate was 84.6%. Cost-savings in the first year was $178,100 per patient when compared with Food and Drug Administration-approved HBIG dosing. CONCLUSIONS In the era of potent oral nucleos(t)ide analogues, a limited HBIG course appears to be cost-effective in preventing HBV recurrence.
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Stephan J, Cohen E, Gonzalez J. BRCAness in endometrial cancer. Gynecol Oncol 2015. [DOI: 10.1016/j.ygyno.2015.07.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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De Souza B, Cohen E, Avitzur Y, Richardson S, Mahant S, Rapoport A. 129: Gastric Flora in Gastrostomy Fed Children with Neurological Impairment on Acid Suppression Medication. Paediatr Child Health 2015. [DOI: 10.1093/pch/20.5.e81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Mukerji A, Shah V, Kumar M, Geraghty M, Guttmann A, Cohen E, Jain A. 6: Towards Pulse Oximetry Screening in Ontario, Canada: What is the Burden of Missed Critical Congenital Heart Disease? Paediatr Child Health 2015. [DOI: 10.1093/pch/20.5.e33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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100
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Segundo M, Drabo A, Mostoufizadeh S, Hinschberger O, Lohmann C, Cohen E, Kieffer P. Évaluation rétrospective de l’intérêt des ponctions lombaires avec mesure de l’index de synthèse intrathécale spécifique (index AI) en cas de suspicion de neuroborréliose chez l’adulte à partir d’une série de 172 patients. Rev Med Interne 2015. [DOI: 10.1016/j.revmed.2015.03.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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