Urine leak in minimally invasive partial nephrectomy: analysis of risk factors and role of intraoperative ureteral catheterization. - Zargar H; Khalifeh A; Autorino R; Akca O; Brandão LF; Laydner H; Krishnan J; Samarasekera D; Haber GP; Stein RJ; Kaouk JH (International braz j urol : official journal of the Brazilian Society of Urology, 2014)