We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePrevention. How much harm? How much benefit? 2. Ten potential pitfalls in determining the clinical significance of benefits.AuthorsMarshall KGPublicationCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 1996, Vol 154, Issue 12, p1837ISSN0820-3946Publication typearticle