[Early detection of placenta praevia with ultrasonic reflection based on the Doppler principle].
D000328:Adult; D005260:Female; D006801:Humans; D010923:Placenta Previa / Q000175:diagnosis*; D011247:Pregnancy; D014463:Ultrasonography
Elölfekvö lepény korai felismerése a Doppler-elv alapján alkalmazott ultrahang-reflexióval.