We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleThose confounded vitamins: what can we learn from the differences between observational versus randomised trial evidence?AuthorsLawlor, Debbie A; Davey Smith, George; Kundu, Devi; Bruckdorfer, K Richard; Ebrahim, ShahPublicationLancet (London, England), 2004, Vol 363, Issue 9422, p1724ISSN1474-547XPublication typeJournal ArticleDOI10.1016/S0140-6736(04)16260-0