The clinical application of ultrasonic placentography.
D002585:Cesarean Section; D005188:False Negative Reactions; D005260:Female; D005865:Gestational Age; D006801:Humans; D010920:Placenta; D010923:Placenta Previa / Q000175:diagnosis*; D011247:Pregnancy; D011272:Pregnancy, Multiple; D011877:Radionuclide Imaging; D014463:Ultrasonography