[Risk associated with variable deceleration developing at stage 1 of delivery].
D036861:Delivery, Obstetric; D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D007231:Infant, Newborn; D007747:Labor Stage, First; D007743:Labor, Obstetric; D011247:Pregnancy; D012306:Risk