Guyatt, Gordon H.; Rennie, Drummond (3 November 1993). "Users' Guides to the Medical Literature". JAMA: The Journal of the American Medical Association. 270 (17): 2096–7. doi:10.1001/jama.1993.03510170086037. PMID8411578.
Evidence-Based Medicine Working Group (4 November 1992). "Evidence-Based Medicine: A New Approach to Teaching the Practice of Medicine". JAMA. 268 (17): 2420–5. doi:10.1001/jama.1992.03490170092032. PMID1404801.
Guyatt, Gordon H.; Rennie, Drummond (3 November 1993). "Users' Guides to the Medical Literature". JAMA: The Journal of the American Medical Association. 270 (17): 2096–7. doi:10.1001/jama.1993.03510170086037. PMID8411578.
Evidence-Based Medicine Working Group (4 November 1992). "Evidence-Based Medicine: A New Approach to Teaching the Practice of Medicine". JAMA. 268 (17): 2420–5. doi:10.1001/jama.1992.03490170092032. PMID1404801.