title: [Maternal mortality and its prevention in the USSR in 1920's and 1930's].
mesh_terms: D005260:Female; D049673:History, 20th Century; D006801:Humans; D008427:Maternal Health Services / Q000266:history; D007744:Obstetric Labor Complications / Q000266:history / Q000401:mortality*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000266:history / Q000401:mortality*; D014586:USSR
vernacular_title: Materinskaia smertnost' i boriba s neĭ v SSSR v 20-30-e gody.