Placental localization using the Doptone fetal pulse recorder.
D002585:Cesarean Section; D005260:Female; D005318:Fetal Heart; D006801:Humans; D008722:Methods; D010920:Placenta; D010923:Placenta Previa / Q000175:diagnosis; D011247:Pregnancy; D014465:Ultrasonics / Q000009:adverse effects / Q000295:instrumentation*; D014592:Uterine Hemorrhage / Q000175:diagnosis; D014599:Uterus