Soft tissue placentography and the uterine compressor.
D005260:Female; D005865:Gestational Age; D006801:Humans; D007746:Labor Presentation; D008722:Methods; D010920:Placenta / Q000000981:diagnostic imaging*; D010923:Placenta Previa / Q000000981:diagnostic imaging; D011187:Posture; D011247:Pregnancy; D011312:Pressure; D011859:Radiography; D014599:Uterus