Obstetric radiography at Birmingham Maternity Hospital.
D004739:England; D005260:Female; D005333:Fetus / Q000000981:diagnostic imaging*; D005865:Gestational Age; D006782:Hospitals, Special; D006801:Humans; D008722:Methods; D009774:Obstetrics; D011187:Posture; D011247:Pregnancy; D011859:Radiography