B. Oktay, G. Koc, H. Vuruskan, M. E. Danisoglu, and Y. Kordan, “Laparoscopic Extraperitoneal Simple Prostatectomy for Benign Prostate Hyperplasia: A Two-Year Experience”, Urol J, vol. 8, no. 2, pp. 107–112, Jun. 2011.