title: How to do a simple epidemiological study. I. Planning.
authors.affiliation: Department of Cardia Medicine (Clinical Epidemiology), National Heart and Lung Institute, Imperial College, London, UK.
authors.forename: T J
authors.initials: TJ
authors.lastname: Bowker
mesh_terms: D016022:Case-Control Studies; D015331:Cohort Studies; D003625:Data Collection; D004812:Epidemiologic Methods; D006801:Humans; D012107:Research Design / Q000592:standards*; D012494:Sampling Studies; D012680:Sensitivity and Specificity