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de Souza HMR, Scalco FB, Garrett R, de C Marques FF. Development of a kit for urine collection on filter paper as an alternative for Pompe disease screening and monitoring by LC-HRMS. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:3932-3939. [PMID: 37539791 DOI: 10.1039/d3ay00587a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Pompe disease (PD) is an inborn error of metabolism caused by α-glucosidase acid enzyme deficiency. It significantly impacts patients' health and life quality and may lead to death in the first few years of life. Among the well-established diagnostic methods, urinary glucose tetrasaccharide (Glc4) screening by high performance-liquid chromatography has been helpful in monitoring Glc4 levels in patients on enzyme replacement therapy, demonstrating therapy efficacy. However, the specimen shipping process from a sample collecting location to a specialized laboratory for monitoring the Glc4 is costly and presents preanalytical challenges. In this work, we developed a filter paper based-urine collection kit to facilitate specimen shipment, and liquid chromatography coupled with high-resolution mass spectrometry (LC-HRMS) analysis to determine Glc4 and creatinine in dried urine on filter paper. The LC-HRMS was based on a combination of targeted and untargeted screening on the same specimen injection and was successfully developed and validated. Bland-Altman statistics revealed a good relationship between dried and liquid urine samples and Glc4 and creatinine. Glc4 and other metabolites in dried urine showed stability for at least 7 days at 4 and 22 °C, and 3 days at 50 °C. The stability of the analytes and the efficiency of the kit were tested simulating real conditions by sending it by post. After two days in transit without refrigeration, the stability of compounds was maintained, showing the reliability of the urine collection kit and analysis method to determine the PD biomarker Glc4.
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Affiliation(s)
- Hygor M R de Souza
- Federal University of Rio de Janeiro, Institute of Chemistry, Metabolomics Laboratory, Rio de Janeiro 21941-598, RJ, Brazil
- Fluminense Federal University, Institute of Chemistry, Department of Analytical Chemistry, Laboratory of Fundamental and Applied Analytical Chemistry, Niterói 24020-141, RJ, Brazil.
| | - Fernanda B Scalco
- Federal University of Rio de Janeiro, Institute of Chemistry, Inborn Error of Metabolism Laboratory, Rio de Janeiro 21941-598, RJ, Brazil
| | - Rafael Garrett
- Federal University of Rio de Janeiro, Institute of Chemistry, Metabolomics Laboratory, Rio de Janeiro 21941-598, RJ, Brazil
| | - Flávia F de C Marques
- Fluminense Federal University, Institute of Chemistry, Department of Analytical Chemistry, Laboratory of Fundamental and Applied Analytical Chemistry, Niterói 24020-141, RJ, Brazil.
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Zailani MAH, Raja Sabudin RZA, Ismail A, Abd Rahman R, Mohd Saiboon I, Sabri SI, Seong CK, Mail J, Md Jamal S, Beng GK, Mahdy ZA. Influence of drone carriage material on maintenance of storage temperature and quality of blood samples during transportation in an equatorial climate. PLoS One 2022; 17:e0269866. [PMID: 36070297 PMCID: PMC9451063 DOI: 10.1371/journal.pone.0269866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 05/27/2022] [Indexed: 11/18/2022] Open
Abstract
The disruptive potentials of drones are rapidly growing including for the delivery of blood samples in healthcare. Maintenance of the quality of blood samples is important to ascertain that the drone is a safe mode of transportation, particularly during emergencies and in critical cases. The influence of the drone carriage material on blood samples transportation was investigated in this study. Two phases of drone simulation flights were conducted in Cyberjaya, Malaysia. In Phase 1, the effect of drone carriage material on the internal storage temperature during blood samples transportation was determined. Three types of carriage materials were compared: aluminium, expanded polystyrene (EPS) foam, and polypropylene (PP) plastic. In Phase 2, the quality of drone-transported blood samples was assessed, using the best material from Phase 1 as the drone carriage material. Biochemical and hematological analyses of 60 blood samples were conducted using five parameters. In Phase 1, EPS foam was found to be the best material to maintain a stable and favorable internal storage temperature at mean kinetic temperature ±SD of 4.70 ±1.14°C. Much higher and unfavorable mean kinetic temperatures were recorded for aluminium (11.46 ±0.35°C) and plastic (14.17 ±0.05°C). In Phase 2, laboratory tests show that the quality of blood samples was well maintained, and the mean biochemical and hematological parameters of drone-transported blood samples showed no significant alteration compared to ground controls. Drone carriage material is an important determinant of the quality of blood samples transported by drone, particularly in hot equatorial climates as in Malaysia. The blood storage temperature was best maintained using EPS foam, as evidenced by the favorable average temperature and preservation of hematological and biochemical parameters of the blood samples.
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Affiliation(s)
| | | | - Aniza Ismail
- Department of Community Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Rahana Abd Rahman
- Department of Obstetrics and Gynecology, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Ismail Mohd Saiboon
- Department of Emergency Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Shahnaz Irwani Sabri
- Queen Elizabeth II Hospital (QEHII), Ministry of Health (MOH), Kota Kinabalu, Malaysia
| | - Chan Kok Seong
- Sabah Women and Children Hospital (SWACH), Ministry of Health (MOH), Kota Kinabalu, Malaysia
| | - Jamaludin Mail
- Sabah Women and Children Hospital (SWACH), Ministry of Health (MOH), Kota Kinabalu, Malaysia
| | - Shamsuriani Md Jamal
- Department of Emergency Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Gan Kok Beng
- Department of Electrical, Electronic & Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Zaleha Abdullah Mahdy
- Department of Obstetrics and Gynecology, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
- * E-mail:
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Assessment of a dried blood spot C-reactive protein method to identify disease flares in rheumatoid arthritis patients. Sci Rep 2020; 10:21089. [PMID: 33273485 PMCID: PMC7713120 DOI: 10.1038/s41598-020-77826-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022] Open
Abstract
Rheumatoid arthritis (RA) is characterised by painful, stiff and swollen joints. RA features sporadic 'flares' or inflammatory episodes-mostly occurring outside clinics-where symptoms worsen and plasma C-reactive protein (CRP) becomes elevated. Poor control of inflammation results in higher rates of irreversible joint damage, increased disability, and poorer quality of life. Flares need to be accurately identified and managed. A method comparison study was designed to assess agreement between CRP values obtained by dried blood spot (DBS) versus conventional venepuncture sampling. The ability of a weekly DBS sampling and CRP test regime to detect flare outside the clinic was also assessed. Matched venepuncture and finger lancet DBS samples were collected from n = 100 RA patients with active disease at baseline and 6 weeks (NCT02809547). A subset of n = 30 RA patients submitted weekly DBS samples over the study period. Patient demographics, including self-reported flares were recorded. DBS sample CRP measurements were made by enzyme-linked immunosorbent assay, and venepuncture samples by a reference immunoturbometric assay. Data was compared between sample types by Bland-Altman and weighted Deming regression analyses. Flare detection sensitivity and specificity were compared between 'minimal' baseline and 6 week sample CRP data and the 'continuous' weekly CRP data. Baseline DBS ELISA assay CRP measures yielded a mean positive bias of 2.693 ± 8.640 (95% limits of agreement - 14.24 to 19.63%), when compared to reference assay data. Deming regression revealed good agreement between the DBS ELISA method and reference assay data, with baseline data slope of 0.978 and intercept -0.153. The specificity of 'continuous' area under the curve (AUC) CRP data (72.7%) to identify flares, was greater than 'minimal' AUC CRP data (54.5%). This study indicates reasonable agreement between DBS and the reference method, especially at low to mid-range CRP values. Importantly, longitudinal CRP measurement in RA patients helps to clearly identify flare and thus could assist in remote monitoring strategies and may facilitate timely therapeutic intervention.Trial registration: The Remote Arthritis Disease Activity MonitoR (RADAR) study was registered on 22/06/2016 at ClinicalTrials.gov Identifier: NCT02809547. https://clinicaltrials.gov/ct2/show/NCT02809547 .
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Evaluation of a novel blood microsampling device for clinical trial sample collection and protein biomarker analysis. Bioanalysis 2020; 12:919-935. [DOI: 10.4155/bio-2020-0063] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Aim: Evaluation of a novel microsampling device for its use in clinical sample collection and biomarker analysis. Methodology: Matching samples were collected from 16 healthy donors (ten females, six males; age 42 ± 20) via K2EDTA touch activated phlebotomy (TAP) device and phlebotomy. The protein profile differences between sampling groups was evaluated using aptamer-based proteomic assay SomaScan and selected ELISA. Conclusion: Somascan signal concordance between phlebotomy- and TAP-generated samples was studied and comparability of protein abundances between these blood sample collection methods was demonstrated. Statistically significant correlation in selected ELISA assays also confirmed the TAP device applicability to the quantitative analysis of protein biomarkers in clinical trials.
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Simpson S, Kaislasuo J, Guller S, Pal L. Thermal stability of cytokines: A review. Cytokine 2019; 125:154829. [PMID: 31472404 DOI: 10.1016/j.cyto.2019.154829] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 08/22/2019] [Accepted: 08/23/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND The role of cytokines in various disease states is a burgeoning field of academic study and clinical application, however there are no consensus documents on how certain cytokines should be stored prior to quantification. This information is especially of interest to researchers assembling a biobank or clinicians who have to transport specimens to a different location in order to be tested. OBJECTIVE To review the literature and synthesize prior findings on cytokine storage and freeze/thaw stability. DESIGN We searched PubMed for articles related to cytokine storage stability. All articles were analyzed for cytokines studied, source of reported cytokine concentration (i.e., human whole blood or serum, concentrations from other species or bodily sources were excluded), and reported statistical results. RESULTS We identified and synthesized results of 23 peer-reviewed articles which published data on the storage and freeze/thaw stability of 33 different cytokines and chemokines. CONCLUSION There is a wide variety of reported cytokine storage and freeze/thaw stability. Interleukin-6 and tumor necrosis factor alpha are the most widely studied cytokines in regard to temperature stability. In a few cytokines, a clear consensus can be reached as to storage safety at particular temperatures, but in most, more research needs to be done and we advise the clinician or researcher to use caution in interpreting cytokine concentration results after a long period of storage or several freeze/thaw cycles.
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Affiliation(s)
- Samantha Simpson
- Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA.
| | - Janina Kaislasuo
- Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA; Department of Obstetrics and Gynecology, University of Helsinki and the Helsinki University Hospital, Finland
| | - Seth Guller
- Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Lubna Pal
- Department of Obstetrics, Gynecology and Reproductive Sciences, Division of Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
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Yende S, Kellum JA, Talisa VB, Peck Palmer OM, Chang CCH, Filbin MR, Shapiro NI, Hou PC, Venkat A, LoVecchio F, Hawkins K, Crouser ED, Newman AB, Angus DC. Long-term Host Immune Response Trajectories Among Hospitalized Patients With Sepsis. JAMA Netw Open 2019; 2:e198686. [PMID: 31390038 PMCID: PMC6686981 DOI: 10.1001/jamanetworkopen.2019.8686] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
IMPORTANCE Long-term immune sequelae after sepsis are poorly understood. OBJECTIVE To assess whether abnormalities in the host immune response during hospitalization for sepsis persist after discharge. DESIGN, SETTINGS, AND PARTICIPANTS This prospective, multicenter cohort study enrolled and followed up for 1 year adults who survived a hospitalization for sepsis from January 10, 2012, to May 25, 2017, at 12 US hospitals. EXPOSURES Circulating levels of inflammation (interleukin 6 and high-sensitivity C-reactive protein [hs-CRP]), immunosuppression (soluble programmed death ligand 1 [sPD-L1]), hemostasis (plasminogen activator inhibitor 1 and D-dimer), endothelial dysfunction (E-selectin, intercellular adhesion molecule 1, and vascular cell adhesion molecule 1), and oxidative stress biomarkers were measured at 5 time points during and after hospitalization for sepsis for 1 year. Individual biomarker trajectories and patterns of trajectories across biomarkers (phenotypes) were identified. MAIN OUTCOMES AND MEASURES Outcomes were adjudicated centrally and included all-cause and cause-specific readmissions and mortality. RESULTS A total of 483 patients (mean [SD] age, 60.5 [15.2] years; 265 [54.9%] male) who survived hospitalization for sepsis were included in the study. A total of 376 patients (77.8%) had at least 1 chronic disease, and their mean (SD) Sequential Organ Failure Assessment score was 4.2 (3.0). Readmissions were common (485 readmissions in 205 patients [42.5%]), and 43 patients (8.9%) died by 3 months, 56 patients (11.6%) died by 6 months, and 85 patients (17.6%) died by 12 months. Elevated hs-CRP levels were observed in 23 patients (25.8%) at 3 months, 26 patients (30.2%) at 6 months, and 23 patients (25.6%) at 12 months, and elevated sPD-L1 levels were observed in 45 patients (46.4%) at 3 months, 40 patients (44.9%) at 6 months, and 44 patients (49.4%) at 12 months. Two common phenotypes were identified based on hs-CRP and sPDL1 trajectories: high hs-CRP and sPDL1 levels (hyperinflammation and immunosuppression phenotype [326 of 477 (68.3%)]) and normal hs-CRP and sPDL1 levels (normal phenotype [143 of 477 (30.0%)]). These phenotypes had similar clinical characteristics and clinical course during hospitalization for sepsis. Compared with normal phenotype, those with the hyperinflammation and immunosuppression phenotype had higher 1-year mortality (odds ratio, 8.26; 95% CI, 3.45-21.69; P < .001), 6-month all-cause readmission or mortality (hazard ratio [HR], 1.53; 95% CI, 1.10-2.13; P = .01), and 6-month readmission or mortality attributable to cardiovascular disease (HR, 5.07; 95% CI, 1.18-21.84; P = .02) or cancer (HR, 5.15; 95% CI, 1.25-21.18; P = .02). These associations were adjusted for demographic characteristics, chronic diseases, illness severity, organ support, and infection site during sepsis hospitalization and were robust in sensitivity analyses. CONCLUSIONS AND RELEVANCE In this study, persistent elevation of inflammation and immunosuppression biomarkers occurred in two-thirds of patients who survived a hospitalization for sepsis and was associated with worse long-term outcomes.
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Affiliation(s)
- Sachin Yende
- Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania
- Clinical Research, Investigation, and Systems Modeling of Acute Illness Center, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - John A Kellum
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Victor B Talisa
- Clinical Research, Investigation, and Systems Modeling of Acute Illness Center, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Octavia M Peck Palmer
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Chung-Chou H Chang
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Michael R Filbin
- Department of Emergency Medicine, Massachusetts General Hospital, Boston
| | - Nathan I Shapiro
- Department of Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Peter C Hou
- Division of Emergency Critical Care Medicine, Department of Emergency Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Arvind Venkat
- Department of Emergency Medicine, Allegheny Health Network, Pittsburgh, Pennsylvania
| | | | - Katrina Hawkins
- Department of Anesthesia, George Washington University School of Medicine & Health Sciences, Washington, DC
- Department of Medicine, George Washington University School of Medicine & Health Sciences, Washington, DC
| | - Elliott D Crouser
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus
| | - Anne B Newman
- Department of Epidemiology, University of Pittsburgh, Graduate School of Public Health, and School of Medicine, Division of Geriatric Medicine, Pittsburgh, Pennsylvania
| | - Derek C Angus
- Clinical Research, Investigation, and Systems Modeling of Acute Illness Center, University of Pittsburgh, Pittsburgh, Pennsylvania
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Scholman RC, Giovannone B, Hiddingh S, Meerding JM, Malvar Fernandez B, van Dijk MEA, Tempelman MJ, Prakken BJ, de Jager W. Effect of anticoagulants on 162 circulating immune related proteins in healthy subjects. Cytokine 2017; 106:114-124. [PMID: 29089178 DOI: 10.1016/j.cyto.2017.10.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 08/10/2017] [Accepted: 10/23/2017] [Indexed: 10/18/2022]
Abstract
Diagnosis of complex disease and response to treatment is often associated with multiple indicators, both clinical and laboratorial. With the use of biomarkers, various mechanisms have been unraveled which can lead to better and faster diagnosis, predicting and monitoring of response to treatment and new drug development. With the introduction of multiplex technology for immunoassays and the growing awareness of the role of immune-monitoring during new therapeutic interventions it is now possible to test large numbers of soluble mediators in small sample volumes. However, standardization of sample collection and laboratory assessments remains suboptimal. We developed a multiplex immunoassay for detection of 162 immune related proteins in human serum and plasma. The assay was split in panels depending on natural occurring concentrations with a maximum of 60 proteins. The aim of this study was to evaluate precision, accuracy, reproducibility and stability of proteins when repeated freeze-thaw cycles are performed of this in-house developed panel, as well as assessing the protein signature in plasma and serum using various anticoagulants. Intra-assay variance of each mediator was <10%. Inter-assay variance ranged between 1.6 and 37% with an average of 12.2%. Recoveries were similar for all mediators (mean 99.8 ± 2.6%) with a range between 89-107%. Next we measured all mediators in serum, EDTA plasma and sodium heparin plasma of 43 healthy control donors. Of these markers only 19 showed similar expression profiles in the 3 different matrixes. Only 5 mediators were effected by multiple freeze-thawing cycles. Principal component analysis revealed different coagulants cluster separately and that sodium heparin shows the most consistent profile.
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Affiliation(s)
- Rianne C Scholman
- Department of Pediatric Immunology, University Medical Center Utrecht, Utrecht, The Netherlands; Multiplex Core Facility, Laboratory of Translational Immunology, University Medical center Utrecht, Utrecht, The Netherlands
| | - Barbara Giovannone
- Department of Dermatology and Allergology, University Medical Center Utrecht, Utrecht, The Netherlands; Multiplex Core Facility, Laboratory of Translational Immunology, University Medical center Utrecht, Utrecht, The Netherlands
| | - Sanne Hiddingh
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, The Netherlands; Multiplex Core Facility, Laboratory of Translational Immunology, University Medical center Utrecht, Utrecht, The Netherlands
| | - Jenny M Meerding
- Department of Pediatric Immunology, University Medical Center Utrecht, Utrecht, The Netherlands; Multiplex Core Facility, Laboratory of Translational Immunology, University Medical center Utrecht, Utrecht, The Netherlands
| | - Beatriz Malvar Fernandez
- Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, The Netherlands; Multiplex Core Facility, Laboratory of Translational Immunology, University Medical center Utrecht, Utrecht, The Netherlands
| | - Mariska E A van Dijk
- Multiplex Core Facility, Laboratory of Translational Immunology, University Medical center Utrecht, Utrecht, The Netherlands
| | - Mariëlle J Tempelman
- Multiplex Core Facility, Laboratory of Translational Immunology, University Medical center Utrecht, Utrecht, The Netherlands
| | - Berent J Prakken
- Department of Pediatric Immunology, University Medical Center Utrecht, Utrecht, The Netherlands; Multiplex Core Facility, Laboratory of Translational Immunology, University Medical center Utrecht, Utrecht, The Netherlands
| | - Wilco de Jager
- Department of Pediatric Immunology, University Medical Center Utrecht, Utrecht, The Netherlands; Multiplex Core Facility, Laboratory of Translational Immunology, University Medical center Utrecht, Utrecht, The Netherlands.
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Brenner M, Wang P. What'S New in SHOCK, June 2017? Shock 2017; 47:661-665. [PMID: 28505019 DOI: 10.1097/shk.0000000000000860] [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]
Affiliation(s)
- Max Brenner
- Center for Immunology and Inflammation, The Feinstein Institute for Medical Research, Manhasset, New York
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