Placental localization by combined visual and auditory ultrasound techniques. A comparative study.
D001698:Biomedical Engineering; D005260:Female; D005865:Gestational Age; D006801:Humans; D008722:Methods; D010808:Physical Examination; D010920:Placenta / Q000000981:diagnostic imaging; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis; D011859:Radiography; D011868:Radioisotopes; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography
D011868:Radioisotopes