1. The role of urethrography in urethral disease. Part I. Accurate radiological localization of the membranous urethra and distal sphincters in normal male subjects;McCallum;J Urol,1979
2. Office flexible cystoscopy;Kavoussi;Urol Clin North Am,1988
3. The diagnosis of stricture of the urethra by Roentgen rays;Cunningham;Trans Am Assoc Genitourin Surg,1910
4. The role of urethrography in urethral disease. Part II. Indications for transphincter urethroplasty in patients with primary bulbous strictures;Colapinto;J Urol,1979
5. Surgery of the penis and urethra;Jordan,2007