We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePerformance of the modified Poisson regression approach for estimating relative risks from clustered prospective data.AuthorsYelland LN; Salter AB; Ryan PPublicationAmerican journal of epidemiology, 2011, Vol 174, Issue 8, p984ISSN1476-6256Publication typearticleDOI10.1093/aje/kwr183