title: Perineal endometriosis without perineal trauma: a case report.
authors.affiliation: Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing 100730, China.
authors.forename: Lan
authors.initials: L
authors.lastname: Zhu
authors.forename: Jinghe
authors.initials: J
authors.lastname: Lang
authors.forename: Felix
authors.initials: F
authors.lastname: Wong
authors.forename: Lina
authors.initials: L
authors.lastname: Guo
mesh_terms: D000328:Adult; D004715:Endometriosis / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D005260:Female; D006801:Humans; D010502:Perineum