title: Case-control study design: what, when, and why?
authors.forename: Jayawant N
authors.initials: JN
authors.lastname: Mandrekar
authors.forename: Sumithra J
authors.initials: SJ
authors.lastname: Mandrekar
mesh_terms: D016022:Case-Control Studies; D006801:Humans; D016015:Logistic Models; D008175:Lung Neoplasms / Q000453:epidemiology; D008385:Marijuana Smoking / Q000453:epidemiology; D012107:Research Design; D012307:Risk Factors