[Prolonged labor. Its influence on perinatal mortality. IV].
D005260:Female; D006801:Humans; D007226:Infant Mortality; D007743:Labor, Obstetric; D066087:Perinatal Death; D054238:Perinatal Mortality; D011247:Pregnancy; D013997:Time Factors; D014937:Work
INFANT MORTALITY; LABOR