Doppler shifted ultrasound. History and applications in clinical medicine.
D001783:Blood Flow Velocity; D001795:Blood Pressure Determination; D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D006666:History of Medicine; D007564:Japan; D011247:Pregnancy; D013686:Telemetry; D014465:Ultrasonics / Q000266:history*; D014481:United States; D014652:Vascular Diseases / Q000175:diagnosis