A multinational, multi-institutional study comparing positive surgical margin rates among 22393 open, laparoscopic, and robot-assisted radical prostatectomy patients. by Sooriakumaran, P, Srivastava, A, Shariat, S, Stricker, P, Ahlering, T, Eden, C, Wiklund, P, Sanchez-Salas, R, Mottrie, A, Lee, D, Neal, D, Ghavamian, R, Nyirady, P, Nilsson, A, Carlsson, S, Xylinas, E, Loidl, W, Seitz, C, Schramek, P, Roehrborn, C, Cathelineau, X, Skarecky, D, Shaw, G, Warren, A, Delprado, W