Choosing a research study design and selecting a population to study.
Enarson
D A
DA
Scientific Activities Unit, International Union Against Tuberculosis and Lung Disease, Paris, France. union@iuatld.org
Kennedy
S M
SM
Miller
D L
DL
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