Zorn KC, Gautam G, Shalhav AL, Clayman RV, Ahlering TE, Albala DM, Lee DI, Sundaram CP, Matin SF, Castle EP, Winfield HN, Gettman MT, Lee BR, Thomas R, Patel VR, Leveillee RJ, Wong C, Badlani GH, Rha KH, Eggener SE, Wiklund P, Mottrie A, Atug F, Kural AR, Joseph JV. Training, credentialing, proctoring and medicolegal risks of robotic urological surgery: recommendations of the society of urologic robotic surgeons. J Urol. 2009 Sep; 182(3):1126-32.