title: Obstetrics.
mesh_terms: D000767:Anesthesia, Epidural; D000773:Anesthesia, Obstetrical; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D007752:Obstetric Labor, Premature; D009774:Obstetrics; D010922:Placenta Diseases; D010927:Placental Insufficiency; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011262:Pregnancy Trimester, Second; D011263:Pregnancy Trimester, Third; D012204:Rh-Hr Blood-Group System
chemical_list: D012204:Rh-Hr Blood-Group System