Beiko, Darren, S.C. Peter Bryson, C. David Bell, and Kenneth T. Pace. “Laparoscopic Excision of a Cystic Retroperitoneal Adenocarcinoma Arising in a Focus of Extra-Ovarian Endometriosis”. Canadian Urological Association Journal 4, no. 3 (April 17, 2013): E71-E73. Accessed May 26, 2026. https://cuaj.ca/index.php/journal/article/view/861.