We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleA potential design flaw of randomized trials of vitamin supplements.AuthorsMorris MC; Tangney CCPublicationJAMA, 2011, Vol 305, Issue 13, p1348ISSN1538-3598Publication typearticleDOI10.1001/jama.2011.383