Ultrasound in clinical obstetrics.
D000649:Amniocentesis; D000013:Congenital Abnormalities / Q000175:diagnosis; D005260:Female; D005313:Fetal Death / Q000175:diagnosis; D005315:Fetal Diseases / Q000175:diagnosis*; D005865:Gestational Age; D006470:Hemorrhage / Q000175:diagnosis; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011272:Pregnancy, Multiple; D014463:Ultrasonography