GRADE guidelines: 3. Rating the quality of evidence

Journal of Clinical Epidemiology - Tập 64 - Trang 401-406 - 2011
Howard Balshem1, Mark Helfand1,2, Holger J. Schünemann3, Andrew D. Oxman4, Regina Kunz5, Jan Brozek3, Gunn E. Vist4, Yngve Falck-Ytter6, Joerg Meerpohl7,8, Susan Norris9, Gordon H. Guyatt3
1Oregon Evidence-based Practice Center, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd., Portland, OR 97239, USA
2Portland VA Medical Center, Portland, OR, USA
3Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
4Norwegian Knowledge Centre for the Health Services, PO Box 7004, St Olavs plass, 0130 Oslo, Norway
5Basel Institute of Clinical Epidemiology, University Hospital Basel Hebelstrasse 10, 4031 Basel, Switzerland
6Division of Gastroenterology, Case Medical Center and VA, Case Western Reserve University, Cleveland, OH 44106, USA
7German Cochrane Center, Institute of Medical Biometry and Medical Informatics, University Medical Center Freiburg, 79104 Freiburg, Germany
8Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, University Medical Center Freiburg, 79106 Freiburg, Germany
9Department of Medical Informatics and Clinical Epidemiology, Oregon Health and Science University, Portland, OR 97239-3098, USA

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Journal of Clinical Epidemiology

Tập 64

401-406

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