Beiko, D., K. Zaza, K. V. Power, D. R. Siemens, and A. H. Boag. “Isolated Anterior Urethral Recurrence of Prostatic Adenocarcinoma”. Canadian Urological Association Journal, vol. 8, no. 5-6, May 2014, pp. e361-3, doi:10.5489/cuaj.1692.