title: Does midline episiotomy increase the risk of third- and fourth-degree lacerations in operative vaginal deliveries?
authors.forename: R
authors.initials: R
authors.lastname: Mittendorf
mesh_terms: D004841:Episiotomy / Q000009:adverse effects* / Q000379:methods*; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000209:etiology*; D010502:Perineum / Q000293:injuries*; D011247:Pregnancy; D012307:Risk Factors