Purnell, S., Sidana, A., Maruf, M., Grant, C., & Agarwal, P. K. (2017). Genitourinary Paraganglioma: Demographic, Pathologic, and Clinical Characteristics in the Surveillance, Epidemiology, and End Results (SEER) Database (2000–2012). Urol Oncol.

Purnell, Stephanie, Abhinav Sidana, Mahir Maruf, Campbell Grant, et Piyush K. Agarwal. "Genitourinary Paraganglioma: Demographic, Pathologic, and Clinical Characteristics in the Surveillance, Epidemiology, and End Results (SEER) Database (2000–2012)." Urol Oncol 2017.

Purnell, Stephanie, et al. "Genitourinary Paraganglioma: Demographic, Pathologic, and Clinical Characteristics in the Surveillance, Epidemiology, and End Results (SEER) Database (2000–2012)." Urol Oncol 2017.