Kielland's forceps for deep transverse arrest.
D005113:Extraction, Obstetrical / Q000009:adverse effects; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007744:Obstetric Labor Complications; D009772:Obstetrical Forceps; D011247:Pregnancy; D012189:Retrospective Studies; D014710:Version, Fetal