title: [Evaluation of the quality of data on perinatal mortality. The Mexican Fertility Survey 1976-1977].
mesh_terms: D005260:Female; D005313:Fetal Death / Q000453:epidemiology*; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D008800:Mexico; D011247:Pregnancy; D012923:Social Class
vernacular_title: Evaluación de la calidad de los datos sobre mortalidad perinatal. Encuesta Mexicana de Fecundidad 1976-1977.