Ural, S H Fourth-degree lacerations and epidural anesthesia. [electronic resource] - International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics Dec 2000 - 231-3 p. digital Publication Type: Journal Article ISSN: 0020-7292 Standard No.: 10.1016/s0020-7292(00)00343-x doi Subjects--Topical Terms: Anesthesia, EpiduralFemaleHumansIncidenceLacerations--epidemiologyLogistic ModelsObstetric Labor ComplicationsObstetrical Forceps--adverse effectsParityPerineum--injuriesPregnancyVacuum Extraction, Obstetrical--adverse effects