title: [Methodology of epidemiological studies of the problems of perinatal medicine].
mesh_terms: D000022:Abortion, Spontaneous / Q000209:etiology*; D000328:Adult; D001721:Birth Intervals; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature; D008423:Maternal Age; D007752:Obstetric Labor, Premature / Q000209:etiology*; D010500:Perinatology; D011247:Pregnancy
vernacular_title: Metodologiia epidemiologicheskikh issledovaniĭ problem perinatal'noĭ meditsiny.