title: [Effect of age on the course of pregnancy, labor and puerperium in primiparae].
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008423:Maternal Age; D007744:Obstetric Labor Complications / Q000453:epidemiology; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology*; D012426:Russia
vernacular_title: Vliianie vozrasta na techenie beremennosti, rodov i poslerodovogo perioda u pervorodiaschchikh zhenshchin.