We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSeverity of bias of a simple estimator of the causal odds ratio in Mendelian randomization studies.AuthorsHarbord RM; Didelez V; Palmer TM; Meng S; Sterne JA; Sheehan NAPublicationStatistics in medicine, 2013, Vol 32, Issue 7, p1246ISSN1097-0258Publication typearticleDOI10.1002/sim.5659