Effects of an upright position during labor.
D001034:Apgar Score; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007743:Labor, Obstetric; D009773:Obstetric Nursing; D011187:Posture; D011247:Pregnancy; D011295:Prenatal Care; D013997:Time Factors; D014599:Uterus / Q000502:physiology