We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEthical challenges in cluster randomized controlled trials: experiences from public health interventions in Africa and Asia.AuthorsOsrin D; Azad K; Fernandez A; Manandhar DS; Mwansambo CW; Tripathy P; Costello AMPublicationBulletin of the World Health Organization, 2009, Vol 87, Issue 10, p772ISSN0042-9686Publication typearticleDOI10.2471/BLT.08.051060