title: Choosing a research study design and selecting a population to study.
authors.affiliation: Scientific Activities Unit, International Union Against Tuberculosis and Lung Disease, Paris, France. union@iuatld.org
authors.forename: D A
authors.initials: DA
authors.lastname: Enarson
authors.forename: S M
authors.initials: SM
authors.lastname: Kennedy
authors.forename: D L
authors.initials: DL
authors.lastname: Miller
mesh_terms: D035843:Biomedical Research / Q000379:methods*; D016022:Case-Control Studies; D015331:Cohort Studies; D016021:Epidemiologic Studies; D006801:Humans; D011159:Population Surveillance; D012107:Research Design; D018401:Sample Size