We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleClaims of equivalence in medical research: are they supported by the evidence?AuthorsGreene WL; Concato J; Feinstein ARPublicationAnnals of internal medicine, 2000, Vol 132, Issue 9, p715ISSN0003-4819Publication typearticleDOI10.7326/0003-4819-132-9-200005020-00006