article 1981 A case of extensive pelvic endometriosis terminating in endometrial sarcoma American journal of obstetrics and gynecology ·doi:10.1016/0002-9378(81)90216-7
other 1973 Carcinoma of the endometrium American journal of obstetrics and gynecology ·doi:10.1016/0002-9378(73)90615-7