GRADE working group

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The GRADE working group

The Grading of Recommendations Assessment, Development and Evaluation (short GRADE) Working Group began in the year 2000 as an informal collaboration of people with an interest in addressing the shortcomings of present grading systems in health care.

Iosief Abraha Dr Epidemiology Department Regional Health Authority of Umbria Perugia . Italy
Marc Afilalo Associate Professor, Director McGill University, Emergency Department, Sir Mortimer B Davis Jewish General Hospital Montreal QC Canada
Thomas Agoritsas Physician & Research Fellow Department of Clinical Epidemiology and Biostatistics, McMaster University & University Hospitals of Geneva, Switzerland. Hamilton ON Canada
Raul Aguilera Eguía Physical Therapist Professor of Evidence Based Medicine Santiago City Chile
Faruque Ahmed Senior Epidemiologist Centers for Disease Control and Prevention Atlanta GA USA
Tomoyuki Aihara Staff physician Department of Internal Medicine, Hirosaki Municipal Hospital Hirosaki Japan
Morio Aihara Director Aihara Clinic Hirosaki Japan
Elie Akl Assistant Professor of Medicine State University of New York at Buffalo, ECMC Buffalo NY USA
Waleed Al-Hazzani  Assistant professor Department of Medicine, McMaster University, Hamilton Hamilton ON Canada
Phil Alderson Associate Director Centre for Clinical Practice, NICE Manchester UK
Pablo Alonso-Coello Researcher Iberoamerican Cochrane Center, Hospital de la Santa Creu i Sant Pau; CIBER de Epidemiología y Salud Pública (CIBERESP) Barcelona Spain
Laura Amato Dr. Department of Epidemiology, Lazio Regional Health Authority and Cochrane Drugs and Alcohol Group Rome Italy
Jeff Andrews Associate Professor Vanderbilt Evidence-based Practice Center Nashville TN USA
Mohammed Ansari  Associate Investigator and Lead Clinical Methodologist Knowledge Synthesis Group, Clinical Epidemiology Program, Ottawa Hospital Research Institute (OHRI) Ottawa ON Canada
Ingrid Arevalo-Rodriguez Clinical Epidemiologist Fundación Universitaria de Ciencias de la Salud, Hospital de San José/ Hospital Infantil de San José Bogota Colombia
David Atkins Director QUERI Program, Office of Research and Development, Department of Veterans Affairs Washington DC USA
Howard Balshem Research Associate Oregon Evidence-based Practice Center, Oregon Health & Science University Portland OR USA
Hilda Bastian PubMed Health, National Center for Biotechnology Information (NCBI) / NLM / NIH Bethesda MD USA
Fadi Bdair Assistant Professor of Medicine State University of New York at Buffalo Buffalo NY USA
Hans de Beer Consultant CBO Utrecht The Netherlands
Maria Benkhalti Jandu Coordinator WHO Collaborating Centre for Knowledge Translation and Health Technology Assessment in Health Equity, Centre for Global Health, University of Ottawa Ottawa ON Canada
Gunnar Bergström  associate professor  The National Board of Health and Welfare Stockholm Sweden
Lise M. Bjerre Assistant-professor and clinician-investigator Departments of Family Medicine and Epidemiology and Community Medicine, University of Ottawa Ottawa Canada
Natalie Blackburn Researcher Centers for Disease Control and Prevention, Division of Hepatitis Atlanta GA USA
Patrick Bossuyt Professor Department of Clinical Epidemiology and Biostatistics, University of Amsterdam Amsterdam The Netherlands
Fernando Botto Associate Director Instituto Cardiovascular de Buenos Aires (ICBA) and Estudios Clínicos Latino América (ECLA) Buenos Aires Argentinia
Matthias Briel  Senior Scientist Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel Basel Switzerland
Romina Brignardello-Petersen Professor Faculty of Dentistry, University of Chile Santiago de Chile Chile
Jan Brozek Assistant Professor Departments Clinical Epidemiology and Biostatistics and Medicine, McMaster University Hamilton ON Canada
Klara Brunnhuber Clinical Editor Evidence Centre, BMJ Publishing Group London UK
Massimo Brunetti Health Economist Local Health Unit Modena Modena Italy
Belinda Burford Research Fellow Cochrane Public Health Group, University of Melbourne Melbourne VIC Australia
Bernard Burnand Chief Physician; Associate Professor Healthcare Evaluation Unit, IUMSP, CHUV and University of Lausanne Lausanne Switzerland
Doug Campos-Outcalt  Chair Department of Family, Community and Preventive Medicine, University of Arizona College of Medicine Phoenix AZ USA
Alonso Carrasco-Labra Professor Faculty of Dentistry, University of Chile Santiago de Chile Chile
Stephanie Chang Director, Evidence-based Practice Center Program, Center for Outcomes and Evidence, Agency for Healthcare Research and Quality Rockville MD USA
Yaolong Chen Dr., Editor Evidence Based Medicine Center of Lanzhou University  Lanzhou  China
Bill Chiu Associate Professor of Surgery Division of Surgical Critical Care, R Adams Cowley Shock Trauma Center, University of Maryland School of Medicine Baltimore MD USA
Robin Christensen Senior Biostatistician The Parker Institute: Musculoskeletal Statistics Unit (MSU), Frederiksberg Hospital Copenhagen  Denmark
Francoise Cluzeau Senior Advisor NICE international London UK
Sarah Connor Gorber Scientific Advisor  Canadian Task Force on Preventive Health Care/Public Health Agency of Canada  Ottawa Canada
Siobhan Crowley Dr Department of HIV/AIDS, World Health Organization Geneva Switzerland
Carlos A. Cuello-Garcia  Professor of Pediatrics and Clinical Research Centre for Evidence-Based Practice and Knowledge Translation, Tecnologico de Monterrey School of Medicine and Health Sciences Monterrey Mexico
Philipp Dahm Professor Department of Urology, Minneapolis VA Health Care System and University of Minnesota  Minneapolis  MN USA
Marina Davoli Head Department of Epidemiology, Lazio Regional Health Authority  Rome Italy
Luz Maria de Regil Director, Research and Evaluation & Chief Technical Services  Micronutrient Initiative Ottawa Canada
Benjamin Djulbegovic Professor of Oncology and Medicine H. Lee Moffitt Cancer Center & Research Institute, University of South Florida Tampa FL USA
Carmen Dolea  Technical Officer Health Workforce Migration and Retention, Human Resources for Health, Health Systems and Services Cluster, World Health Organization Geneva Switzerland
Lisa Dolovich Associate Professor Departments of Family Medicine, Clinical Epidemiology and Biostatistics, and Medicine, McMaster University Hamilton ON Canada
Lesley Dunfield-Bartlett Scientific Research Manager  Canadian Task Force on Preventive Health Care/Public Health Agency of Canada  Ottawa Canada
Mahmoud Elbarbary Professor of Critial Care Medicine; Secretary general National & Gulf Center for EBM; College of Medicine King Saud Bin Abdulaziz University of Health Sciences Riyadh Saudi Arabia 
Mats Eliasson Associate professor Department of Public Health and Clinical Medicine, Umeå University Umeå Sweden
Javier Eslava-Schmalbach Professor - Director Equity in Health Group
School of Medicine
Universidad Nacional de Colombia
Bogota Colombia
Clovis Mariano Faggion Jr. Dr. med. dent.  Department of Prosthetic Dentistry, University of Heidelberg Heidelberg Germany
Yngve Falck-Ytter Associate Professor of Medicine Division of Gastroenterology, Case and VA Medical Center, Case Western Reserve University Cleveland  OH USA
Zbys Fedorowicz  Director Bahrain Branch of the UK Cochrane Centre Awali Bahrain
Mazen Ferwana Consultant and Associate Professor; Co-Director National & Gulf Centre for EBHP, King Saud Abdelaziz University for Health Sciences, College of Medicine. Riyadh Saudi Arabia 
Anita Fitzgerald Assistant Research Manager  New Zealand Guidelines Group  Auckland New Zealand
Signe Flottorp Researcher Norwegian Knowledge Centre for the Health Services Oslo Norway
Bo Freyschuss Department of Medicine, Karolinska Institute Stockholm Sweden
Tais Galvao Federal University of Amazonas and University of Brasilia Brasilia Brazil
Gerald Gartlehner Head Department for EBM and Clinical Epidemiology, Danube University Krems Austria
Davina Ghersi Executive Knowledge Development Officer Research Translation Group
National Health & Medical Research Council
Canberra  ACT  Australia 
Paul Glasziou Professor & Director Centre for Evidence-Based Practice; Department of Primary Health Care Oxford UK
Laragh Gollogly Managing Editor Bulletin of the World Health Organization Geneva Switzerland
Carlos Jiménez Gutiérrez Professor of Epidemiology and Evidence Based Medicine Women's Hospital / National Institute of Pediatrics, Mexican Cochrane Network Mexico City Mexico
Gordon H. Guyatt Professor Departments of Medicine and Clinical Epidemiology and Biostatistics, McMaster University Hamilton ON Canada
Robin T. Harbour Quality and Information Director Scottish Intercollegiate Guidelines Network (SIGN) Edinburgh UK
Thomas Harder Epidemiologist Dept. for Infectious Disease Epidemiology, Robert Koch Institute Berlin Germany
Margaret Haugh Publications Manager Scientific Affairs, Europe, Sanofi Pasteur MSD Lyon France
Geert J.M.G. van der Heijden Head, Department of Social Dentistry Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam Amsterdam The Netherlands
Mark Helfand Director, Professor  Oregon Evidence-based Practice Center, Oregon Health & Science University Portland OR USA
Marleen Hermens Consultant in guideline development  Netherlands Institute of Mental Health and Addiction Utrecht The Netherlands
Adrian V. Hernandez Consultant Analysis and Generation of Evidence in Public Health Unit (UNAGESP), Peruvian National Institute of Health Lima  Peru
Pauline Heus Researcher The Dutch Cochrane Centre Utrecht The Netherlands
Suzanne Hill Scientist World Health Organization Geneva Switzerland
Gitte Hoff Valentin Research asistant Health Technology Assessment and Health Services, CFK-Public Health and Quality Improvement, Central Denmark Region Aarhus Denmark
Lotty Hooft Deputy Director The Dutch Cochrane Centre Utrecht The Netherlands
Markus Horneber Dr Department of Oncology/Hematology, Klinikum Nuernberg Nuernberg Germany
Andrea Horvath Clinical Director Clinical Chemistry SEALS North, SEALS Executive Unit, Prince of Wales Hospital Randwick NSW Australia
Tara Horváth Managing Editor Cochrane HIV/AIDS Group, University of California San Francisco   CA USA
Monica Hultcrantz  Project Director  Swedish Council on Health Technology Assessment Stockholm Sweden
Alfonso Iorio Associate Professor  Department of Clinical Epidemiology & Biostatistics, McMaster University Hamilton ON Canada
Julia Ismael Health Technology Assessment Coordinator National Cancer Institute Buenos Aires CABA Argentinia
Roman Jaeschke Professor Departments of Medicine and Clinical Epidemiology and Biostatistics, McMaster University Hamilton ON Canada
Brad Johnston  Assistant Professor Anesthesia, Health Policy, management and evaluation, University of Toronto Toronto ON Canada
Michelle Kho Health Research Methodology, Department of Clinical Epidemiology and Biostatistics, McMaster University Hamilton ON Canada
Brice Kitio Dschassi Project manager Haute Autorité de Santé Saint Denis France
Roger D. Klein Medical Director; Assistant Professor of Pathology Molecular Oncology, BloodCenter of Wisconsin; Medical College of Wisconsin Milwaukee WI USA
Jorma Komulainen Senior Medical Officer National Institute for Health and Welfare Helsinki Finland
Annette Kristiansen Dr. Sykehuset Innlandet Gjøvik Norway
Ton Kuijpers Epidemiologist, senior advisor guideline development Dutch college of general practitioners Utrecht The Netherlands
Regina Kulier Scientist Guidelines Review Committee Secretariat,
Department of Research, Policy and Cooperation, World Health Organization
Geneva Switzerland
Ilkka Kunnamo Editor-in-Chief EBM Guidelines & EBMeDS, Duodecim Medical Publications Ltd. Helsinki Finland
Regina Kunz Professor, Director asim, Academy of Swiss Insurance Medicine, University Hospital Basel Basel Switzerland
Eddy Lang Associate Professor Division of Emergency Medicine, Department of Family Medicine, University of Calgary Calgary AB Canada
Stefan Lange Deputy Director Institute for Quality and Efficiency in Health Care Cologne Germany
Miranda Langendam Researcher Department of Clinical Epidemiology and Biostatistics, University of Amsterdam Amsterdam The Netherlands
Gero Langer Dr. German Center for Evidence-based Nursing »sapere aude« Halle Germany
Rodrigo M. Carrillo Larco  Research Trainee CRONICAS - Center of Excellence in Chronic Diseases, Universidad Peruana Cayetano Heredia   Lima  Peru
Mariska Leeflang  Researcher Department of Clinical Epidemiology and Biostatistics, University of Amsterdam Amsterdam The Netherlands
Anne Lethaby Research Manager New Zealand Guidelines Group Auckland New Zealand
Alessandro Liberati Professor of Clinical Epidemiology Università di Modena e Reggio Emilia - Modena, Agenzia Sanitaria Regionale Regione Emilia Romagna, and Italian Cochrane Centre Bologna Italy
Helena Liira Associate Editor Finnish Medical Society Duodecim Helsinki Finland
Jan Liliemark Professor SBU - Swedish Council on Health Technology Assessment Sockholm Sweden
Jianping Liu Professor; Director  Centre for Evidence-Based Chinese Medicine, Beijing University of Chinese Medicine Beijing China
Bo Løfgren Associate Professor (Hon) Research Center for Emergency Medicine, Aarhus University Hospital Aarhus Denmark
Jesús López -Alcalde Researcher Public Health Policy Support Unit, Joint Research Centre, European Commission
Ispra Itally
Luciane Cruz Lopes Professor University of Sorocaba São Paulo Brazil
Bin Ma Dr., Lecturer Evidence Based Medicine Center of Lanzhou University  Lanzhou China
Nicola Magrini Clinical Pharmacologist, Director CeVEAS, NHS Centre for the Evaluation of the Effectiveness of Health Care Modena Italy
David Markenson National Chair Scientific Adviosry Council, American Red Cross Washington DC USA
Mercè Marzo Medical Epidemiologist Catalan Institute of Health, Spanish Society of Family and Community Medicine (semFYC) Barcelona Spain
Mike McGraw Reference and User Services Librarian Cleveland Health Sciences Library
Case Western Reserve University
Cleveland  OH USA
Joerg Meerpohl Dr. German Cochrane Centre Freiburg Germany
Hanako Mihara Staff physician Center for Cancer Control and Information Services, National Cancer Center Tokyo Japan
Rubin Minhas Clinical Director & Editor in Chief BMJ Evidence Centre London UK
Andrew Mitchell Strategic Adviser, Evaluation  Australian Government Department of Health and Ageing Canberra ACT Australia
Alessandro Montedori Researcher Regional Health Authority of Umbria Perugia Italy
Victor M. Montori Professor of Medicine and Lead Researcher Knowledge and Encounter Research Unit, Department of Medicine, Mayo Clinic College of Medicine Rochester MN USA
Rebecca Morgan  Researcher Centers for Disease Control and Prevention Atlanta GA USA
Peter Morley Director of Medical Education, Associate Professor  Royal Melbourne Hospital Clinical School; Department of Medicine, University of Melbourne Melbourne Australia
Abdel Moniem Mukhtar Head; Associate Professor Research Department, Public Health Institute; Faculty of Medicine, Ahfad University of Women/ Khartoum/ KRT/ Sudan Khartoum Sudan
Zachary Munn Senior Research Fellow The Joanna Briggs Institute, School of Translational Health Science, The University of Adelaide Adelaide Australia
Hassan Murad Senior Associate Consultant The Division of Preventive, Occupational and Aerospace Medicine, Mayo Clinic Rochester MN USA
Takayuki Murayama Director Patient Safety Division, Gotemba ISHIKAWA Hospital Gotemba Japan
Reem Mustafa Physician Department of Clinical Epidemiology & Biostatistics, McMaster University Health Sciences Centre Hamilton ON Canada
Mona Nasser Clinical Lecturer in Evidence based Dentistry Peninsula Dental School Plymouth UK
Gihad Nesrallah  Adjunct Professor  Division of Nephrology, University of Western Ontario London ON Canada
Tim Nguyen Unit leader Evidence and Information for Policy Making, WHO Regional Office for Europe Copenhagen Denmark
Francesco Nonino Dr.  Drug Evaluation Unit, Health and Social Care Agency,  Emilia Romagna Region Bologna Italy
Susan L. Norris Associate Professor Department of Medical Informatics and Clinical Epidemiology, Oregon Health Sciences University Portland OR USA
Ekwaro Obuku Research Scholar Joint Clinical Research Centre Kampala Uganda 
Guenter Ollenschlaeger Professor, Director German Agency for Quality in Medicine (AEZQ / AQUMED), Berlin, Germany  Berlin Germany
Imran Omar Managing Editor & Research Fellow  Cochrane Incontinence Group, Academic Urology Unit, University of Aberdeen Aberdeen UK
Matthijs Oud Systematic Reviewer and advisor guideline development Trimbos-institute  Utrecht The Netherlands
Andrew D. Oxman Senior Researcher Preventive and International Health Care Unit, Norwegian Knowledge Centre for the Health Services Oslo Norway
Donato Papini Researcher Regione Emilia-Romagna, Agenzia sanitaria e sociale regionale Bologna   Italy
Steven D. Pearson President Institute for Clinical and Economic Review (ICER), Massachusetts General Hospital and Harvard Medical School Boston MA USA
Juan Pablo Peña-Rosas Coordinator Evidence and Programme Guidance
Department of Nutrition for Health and Development , WHO
Geneva Switzerland
Marco Perez  Research coordinator  McMaster University Hamilton ON Canada
Bob Phillips Dr, Associate Fellow Centre for Evidence-based Medicine Oxford UK
Rudolf Poolman Consultant Orthopaedic Surgeon Joint Research
Department of Orthopaedic Surgery
Onze Lieve Vrouwe Gasthuis
Amsterdam The Netherlands
Piet N. Post Consultant in guideline development Post Voor Zorg Delft The Netherlands
Kevin Pottie Associate Professor Departments of Family Medicine and Epidemiology and Community Medicine, University of Ottawa Ottawa ON Canada
Kameshwar Prasad Professor of Neurology, Director (CEU)  Neurosciences Centre & Clinical Epidemiology Unit (CEU),  All India Institute of Medical Sciences (AIIMS) New Delhi India
Silvia Pregno Dr. Public Health Physician Modena Italy
Milo Puhan Associate Professor of Epidemiology Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health Baltimore MD USA
Amir Qaseem Director, Clinical Policy American College of Physicians (ACP) Philadelphia USA
Heike Raatz Dr., Researcher Basel Institute of Clinical Epidemiology and Biostatistics Basel Switzerland
Gabriel Rada Director of the Evidence-Based Healthcare program Faculty of Medicine, Pontificia Universidad Católica de Chile. Santiago Metropolitan Region Chile
Eva Rehfuess Dr Institute for Medical Informatics, Biometry and Epidemiology, University of Munich Munich Germany
David Rigau Researcher Iberoamerican Cochrane Center, Hospital de la Santa Creu i Sant Pau  Barcelona Spain
David Rind Assistant Clinical Professor of Medicine; Co-Executive Editor  Harvard Medical School; UpToDate Boston MA USA
Maria Ximena Rojas Associate Professor Department of Clinical Epidemiology and Biostatistics, School of Medicine, Pontificia Universidad Javeriana Bogota Colombia
Yuani Roman   Consultant Analysis and Generation of Evidence in Public Health Unit (UNAGESP), Peruvian National Institute of Health Lima  Peru
Måns Rosén Executive director, professor Swedish Council on Health Technology Assessment (SBU) Stockholm Sweden
Sarah Rosenbaum Designer / researcher Norwegian Knowledge Centre for the Health Services Oslo Norway
Juan Sahuquillo Assistant Professor of Neurosurgery Vall d'Hebron University Hospital, Department of Neurosurgery Barcelona Spain
Arturo Salazar Dr. Combined Internal Medicine and Pediatrics Residency Program, Wayne State University/ Detroit Medical Center Detroit MI USA
Andrea Juliana Sanabrina Researcher Iberoamerican Cochrane Center, Hospital de la Santa Creu i Sant Pau Barcelona Spain
Eduardo Sancho Head Pediatric & Neonate Cardiac Surgery Department, Jean-Yves Neveux Foundation Campinas Brazil
Nancy Santesso Research Coordinator Department of Clinical Epidemiology and Biostatistics, McMaster University Hamilton ON Canada
Rob J.P.M. Scholten Director The Dutch Cochrane Centre Utrecht The Netherlands
Holger J. Schünemann Professor and Chair Department of Clinical Epidemiology & Biostatistics, McMaster University Health Sciences Centre Hamilton ON Canada
Art Sedrakyan Medical Officer, FDA OC and CDRH Food and Drug Administration (FDA) Silver Spring MD USA
Tatyana Shamliyan Senior Director Quality Assurance in the Evidence based medicine center, Elsevier, Clinical Solutions Minneapolis USA
Ravi Sharaf Assistant Professor of Medicine North Shore - LIJ Hospital System / Hofstra University School of Medicine New Hyde Park NY USA
Ian Shemilt Senior Research Associate University of East Anglia Norwich UK
Vijay Shukla Director, CDR and COMPUS Methods Canadian Agency for Drugs and Technologies in Health Ottawa ON Canada
Jane E. Sisk Division Director Division of Health Care Statistics, National Center for Health Statistics, Centers for Disease Control and Prevention Hyattsville MD USA
Ivan Solà Administrator, Trial search co-ordinator Iberoamerican Cochrane Center, Hospital de la Santa Creu i Sant Pau Barcelona Spain
Joao Paulo Souza  Medical Officer Technical Cooperation with Countries, Department of Reproductive Health and Research, WHO Geneva Switzerland
Annika Strandell Associate Professor Regional Health Technology Assessment Centre, Region Västra Götaland, Sahlgrenska University Hospital  Göteborg Sweden
Shahnaz Sultan Assistant Professor of Medicine Division of Gastroenterology, Hepatology, and Nutrition, Malcom Randall Veterans Affairs Medical Center, University of Florida College of Medicine Gainesville FL USA
Patrice Sutton Research Scientist University of California, San Francisco, Program on Reproductive Health and the Environment Oakland CA USA
Toni Tan Systematic Reviewer Short Clinical Guideline Programme, National Institute for Health and Clinical Excellence (NICE) Manchester UK
Britta Tendal Special advisor Danish Health and Medicines Authority Copenhagen Denmark
Kristina Thayer Director National Toxicology Program (NTP) Office of Health Assessment and Translation (OHAT) Durham NC USA
Judith Thornton Technical Adviser Centre for Clinical Practice, National Institute for Health and Clinical Excellence Manchester UK
Kari Tikkinen Urologist and clinical epidemiologist Dept. of Urology and Dept. of Clinical Epidemiology & Biostatistics, Helsinki University Central Hospital and McMaster University Toronto Canada
Marcus Tolentino  Specialized technician, PhD student Ministry of Health of Brazil, University of Brasília Brasilia Brazil
David Tovey Editor in Chief The Cochrane Library London UK
Shaun Treweek Senior Lecturer Clinical & Population Sciences and Education, University of Dundee Dundee UK
Mario Tristan Dr. and Director-General International Health Central American Institute Foundation, Cochrane Centre of Central America Branch of the Iberoamerican Cochrane Centre San Jose Costa Rica
Peter Tugwell Director Centre for Global Health, University of Ottawa Ottawa ON Canada
Erin Ueffing Field Administrator Cochrane Health Equity Field and Campbell Equity Methods Group, Centre for Global Health, Institute of Population Health, University of Ottawa Ottawa ON Canada
Craig A Umscheid Assistant Professor of Medicine; Co-Director Center for Evidence-based Practice, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania Philadelphia PA USA
Susanne Unverzagt  Researcher Institute of Medical Epidemiology, Biostatistics and Informatics, Martin-Luther-University Halle / Wittenberg Halle Germany
Natasja van Veen Advisor Dutch Association of Medical Specialists Utrecht The Netherlands
Esther Van Zuuren Dermatologist Department of Dermatology, Leiden University Medical Centre Leiden The Netherlands
Per Olav Vandvik Researcher Norwegian Knowledge Centre for the Health Services Oslo Norway
Kris G. III. Vargas Researcher Netherlands Institute for Health Sciences (NIHES), Erasmus MC  -  Rotterdam Rotterdam  The Netherlands
Gunn E. Vist Senior Researcher Norwegian Knowledge Centre for the Health Services Oslo Norway
Erik von Elm Senior Scientist, Co-Director Cochrane Switzerland, IUMSP, CHUV and University of Lausanne  Lausanne Switzerland
Sarah Wamala Dr., Director General Swedish National Institute of Public Health  Östersund  Sweden
Li Wang Dr The Chinese Cochrane Centre / Chinese Evidence-based Medicine Center, West China Hospital, Sichuan University Chengdu China
Joseph Watine Consultant Laboratory Medicine Hôpital de Rodez Rodez  France
Vivian Welch Researcher Centre for Global Health, University of Ottawa Ottawa ON Canada
George A. Wells Professor; Director Department of Epidemiology and Community Medicine, Cardiovascular Research Methods Centre; University of Ottawa Heart Institute Ottawa ON Canada
Maggie Westby  Research Fellow School of Nursing, Midwifery and Social Work | University of Manchester Manchester UK
Craig Whittington Senior Systematic Reviewer National Collaborating Centre for Mental Health, CORE, University College London London UK
Ole Wichmann  Head, Immunization Unit Dept. for Infectious Disease Epidemiology
Robert Koch Institute
Berlin Germany
Wojtek Wiercioch   Research Coordinator Department of Clinical Epidemiology and Biostatistics, McMaster University Hamilton ON Canada
John W. Williams Jr. Professor of Medicine and Psychiatry Duke University and Durham VA Medical Center Durham NC USA
Kevin Wilson Assistant Professor of Medicine; Deputy Editor UpToDate; Boston University School of Medicine Boston MA USA
Robert Wolff Researcher Kleijnen Systematic Reviews Ltd York UK
James Woodcock Lecturer London School of Hygiene and Tropical Medicine London UK
Juan José Yepes-Nuñez Allergist & Clinical Epidemiologist Department of Clinical Epidemiology & Biostatistics, McMaster University Health Science Centre / University of Antioquia Medellín Colombia
Ray Yuan Zhang Department of Clinical Epidemiology and Biostatistics, McMaster University Hamilton ON Canada
Yuqing Zhang Dr.  Department of Clinical Epidemiology and Biostatistics, McMaster University Hamilton ON Canada

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