title: [Some problems in the etiology and pathogenesis of prematurity].
mesh_terms: D000033:Abortion, Threatened / Q000209:etiology*; D000328:Adult; D004967:Estrogens / Q000652:urine; D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature / Q000209:etiology*; D011247:Pregnancy; D011276:Pregnanediol / Q000652:urine; D014626:Vaginal Smears
chemical_list: D004967:Estrogens; D011276:Pregnanediol
vernacular_title: Deiaki pytannia etiolohiï i patohenezu nedonoshuvannia.