title: [Uterine contraction during labor in different maternal positions].
mesh_terms: D005260:Female; D006801:Humans; D007747:Labor Stage, First; D007743:Labor, Obstetric; D011187:Posture; D011247:Pregnancy; D013997:Time Factors; D014590:Uterine Contraction
vernacular_title: Czynność porodowa w róznych ułozeniach i pozycjach.