title: A rare extrapelvic endometriosis: inguinal endometriosis.
authors.affiliation: Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, 1 Shuaifuyuan Dongcheng District, Beijing 100730, China. sunzhj2001@sina.com
authors.forename: Zhi-Jing
authors.initials: ZJ
authors.lastname: Sun
authors.forename: Lan
authors.initials: L
authors.lastname: Zhu
authors.forename: Jing-He
authors.initials: JH
authors.lastname: Lang