We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEvidence based medicine: what it is and what it isn't.AuthorsSackett, D L; Rosenberg, W M; Gray, J A; Haynes, R B; Richardson, W SPublicationBMJ (Clinical research ed.), 1996, Vol 312, Issue 7023, p71ISSN0959-8138Publication typeCommentaryDOI10.1136/bmj.312.7023.71