[Epidemiologic study design].
Hernández-Avila
M
M
Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública (INSP), México. mhernan@insp3.insp.mx
Garrido-Latorre
F
F
López-Moreno
S
S
D016022:Case-Control Studies; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D015340:Epidemiologic Research Design; D016032:Randomized Controlled Trials as Topic