Khoder, Wael Y., Stefan Tritschler, Nikolas Haseke, Patrick J. Bastian, Christian G. Stief, and Armin J. Becker. 2011. “Follow-up Results of a Pure retroperitoneoscopic/Extraperitoneal Nephroureterectomy for Upper Tract Urothelial Tumors”. Surgical Techniques Development 1 (2):e33. https://doi.org/10.4081/std.2011.e33.