Power and Sample Size Calculations for Case-Control Studies of Gene-Environment Interactions with a Polytomous Exposure Variable
Foppa I, Spiegelman D. Power and Sample Size Calculations for Case-Control Studies of Gene-Environment Interactions with a Polytomous Exposure Variable. American Journal Of Epidemiology 1997, 146: 596-604. PMID: 9326439, DOI: 10.1093/oxfordjournals.aje.a009320.Peer-Reviewed Original Research