title: Commentary: prior specification of hypotheses: cause or just a correlate of informative studies?
authors.affiliation: Department of Epidemiology, Campus Box 7400, University of North Carolina School of Public Health, Chapel Hill, NC 27599-7400, USA. david_savitz@unc.edu
authors.forename: D A
authors.initials: DA
authors.lastname: Savitz
mesh_terms: D015984:Causality; D015340:Epidemiologic Research Design; D006801:Humans; D012107:Research Design