AHRQ: Agency for Healthcare Research and Quality (US)

Methods Guide for Effectiveness and Comparative Effectiveness Reviews

Methods Guide for Medical Test Reviews

Methods Research Reports and White Papers

CADTH: Canadian Agency for Drugs and Technologies in Health (CA)

HTA Guidelines and Methods

Center for Evidence-based Medicine (UK)

Resources

Cochrane Collaboration

Handbook

Methods Groups

CRD: Centre for Reviews and Dissemination (UK)

Systematic Reviews Guidance

PROSPERO international register of systematic reviews

Drug Effectiveness Review Project (US)

McDonagh, MS, Jonas DE, Gartlehner G, Little A, Peterson K, Carson S, Gibson M, Helfand, M. Methods for the Drug Effectiveness Review Project. BMC Med Res Methodol, 2012, 12(1):140.

HAS: Haute Autorité de Santé (FR)

Guide Methodologique

IOM: Institute of Medicine (US)

Finding What Works in Health Care: Standards for Systematic Reviews

• National Academies Press
• NCBI Bookshelf

IQWiG: Institut für Qualität und Wirtschaftlichkeit im Gesundheitswesen (DE)

Methods/Procedures  

Methods Papers     

NHMRC: National Health and Medical Research Council (AU)

How to Review the Evidence

NICE: National Institute for Health and Clinical Excellence (UK)

Guidelines Manual 

Pacific Northwest Evidence-based Practice Center (US)

Nelson HD. Systematic Reviews to Answer Health Care Questions.