title: The incidence of premature births.
mesh_terms: D000925:Anticoagulants; D005260:Female; D006493:Heparin / Q000628:therapy*; D006801:Humans; D015994:Incidence; D007752:Obstetric Labor, Premature; D011247:Pregnancy; D047928:Premature Birth
chemical_list: D000925:Anticoagulants; D006493:Heparin
keywords: HEPARIN/therapy; LABOR/premature