title: Ultrasonic placentography.
mesh_terms: D002585:Cesarean Section; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D010920:Placenta / Q000502:physiology; D010922:Placenta Diseases / Q000175:diagnosis*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology; D014463:Ultrasonography; D014592:Uterine Hemorrhage / Q000209:etiology