The electronic evaluation of fetal heart rate. I. With pressure on the fetal skull.
D005260:Female; D005333:Fetus / Q000502:physiology*; D006257:Head; D006321:Heart / Q000502:physiology*; D006340:Heart Rate, Fetal; D011247:Pregnancy; D012886:Skull
CRANIUM; FETUS/physiology; HEART/physiology