The use of the vacuum extractor in the first stage of labour.
D001720:Birth Injuries; D002585:Cesarean Section; D005113:Extraction, Obstetrical / Q000009:adverse effects; D005260:Female; D005313:Fetal Death; D005315:Fetal Diseases / Q000628:therapy; D006801:Humans; D008428:Maternal Mortality; D007744:Obstetric Labor Complications; D006473:Postpartum Hemorrhage / Q000209:etiology; D011247:Pregnancy; D014621:Vagina / Q000293:injuries