Chen, Fan, Xiangyu Wang, Yang Wang, Hui Meng, Yaofeng Zhu, Wei Gao, Xuewen Jiang, et al. “Ectopic Cushing’s Syndrome Due to Retroperitoneal ACTH-Producing Paragangliomas”. Canadian Urological Association Journal 10, no. 9-10 (September 13, 2016): E320–3. Accessed May 26, 2026. https://cuaj.ca/index.php/journal/article/view/3153.