Positive margins in laparoscopic partial nephrectomy in 855 cases: A multi-institutional survey from the United States and Europe

Breda, A; Stepanian, Sv; Liao, J; Lam, Js; Guazzoni, G; Stifelman, M; Perry, K; Celia, A; Breda, G; Fornara, P; Jackman, S; Rosales, A; Palou, J; Grasso, M; Pansadoro, V; Disanto, V; Porpiglia, F; Milani, C; Abbou, C; Gaston, R; Janetschek, G; Soomro, Na; de la Rosette, J; Laguna, Mp; Schulam, Pg