title: [35 years of the obstetrical services in the Lublin district].
mesh_terms: D049673:History, 20th Century; D008427:Maternal Health Services / Q000266:history*; D009774:Obstetrics / Q000266:history*; D011044:Poland
vernacular_title: 35 lat w słuzbie macierzyństwa na Lubelszczyźnie.