1. SEER Cancer Statistic Review, 1973–1994;Ries,1997
2. Penson, D.F., Litwin, M.S.: Quality of life issues in patients with prostate cancer. AUA Update Series, vol. XX, lesson 3
3. Pilot study of changes in stretched penile length 3 months after radical retropubic prostatectomy;Munding;Urology,2001
4. Penile fibrotic changes after radical retropubic prostatectomy;Ciancio;BJU Int,2000
5. The loss of penile length and circumference in impotent men after nerve sparing radical prostatectomy;McCullough;J Urol,1998