title: Ultrasonic pulsed Doppler characterization of the human neonatal peripheral circulation.
mesh_terms: D001775:Blood Circulation; D001783:Blood Flow Velocity; D004301:Doppler Effect; D006339:Heart Rate; D006801:Humans; D007231:Infant, Newborn; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography