Critical appraisal

Books

Greenhalgh T. How to read a paper. The basics of evidence-based medicine. London: BMJ Publishing Group, 2001.

Guyatt G., Rennie D., Meade M., Cook D. Users' Guides to the Medical Literature: Essentials of Evidence-Based Clinical Practice. 2nd edition. (Jama & Archives Journals). McGraw-Hill. Professional, 2008. Free online access provided by JAMAevidence.

Mayer D., Essential Evidence-Based Medicine. 2nd edition. Cambridge, UK: Cambridge University Press, 2010.

Articles

Users' Guides to Evidence-Based Practice
Originally published as a series in the Journal of the American Medical Association (JAMA)

Text-only version (free) hosted by the Centre for Health Evidence
Full version (subscription-based) hosted by JAMA