Relationship between length of gestation and cervical dilatation, uterine contractility, and other factors during pregnancy.
D000328:Adult; D002584:Cervix Uteri / Q000032:analysis; D003075:Coitus; D005260:Female; D005865:Gestational Age; D006801:Humans; D006909:Hydroxyproline / Q000032:analysis; D007743:Labor, Obstetric; D009119:Muscle Contraction; D011247:Pregnancy; D012907:Smoking; D014599:Uterus
D006909:Hydroxyproline