[Clinical analysis of 2,576 partograms in primipara with vertex presentation].
D005260:Female; D006801:Humans; D007746:Labor Presentation; D007743:Labor, Obstetric; D008991:Monitoring, Physiologic; D007744:Obstetric Labor Complications / Q000453:epidemiology; D006473:Postpartum Hemorrhage / Q000209:etiology; D011247:Pregnancy