1. Margules AC, Rovner ES. The use of tissue flaps in the management of urinary tract fistulas. Curr Urol Rep. 2019;20:32. https://doi.org/10.1007/s11934-019-0892-6.
2. Horton CE, Devine CJ, Graham JK. Fistulas of the penile urethra. Plast Reconstr Surg. 1980;66:407. https://doi.org/10.1097/00006534-198066030-00017.
3. Nakazawa S, Uemura M, Miyagawa Y, Tsujimura A, Nonomura N. Urethral fistula and scrotal abscess associated with colovesical fistula due to the sigmoid colon cancer. Hinyokika Kiyo. 2015;61:375.
4. Martín DR, Chamizo JA, Rascón JJ, Piniés GO, Piñero J, Amo FH, Fernández CH, García EL. Recto-urethral fistula secondary to prostate cancer. Arch Esp Urol. 2014;67:92.
5. Singh O, Gupta SS. Urethral foreign body causing urethral fistula. Urol J. 2012;9:430.