[Contractile activity of the uterus in women during labor with a flatly shaped fetal sac].
D005321:Extraembryonic Membranes; D005260:Female; D005333:Fetus; D006801:Humans; D007743:Labor, Obstetric; D011247:Pregnancy; D014599:Uterus
FETAL MEMBRANES; LABOR; UTERUS