Ultrasonic visualization of the placenta.
D005260:Female; D006801:Humans; D008722:Methods; D010920:Placenta / Q000033:anatomy & histology*; D010922:Placenta Diseases / Q000175:diagnosis; D010923:Placenta Previa / Q000175:diagnosis; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D014463:Ultrasonography