[1] Dana Farber Canc Inst, Boston, MA 02115 USA
[2] HSL PUCRS, Oncol Serv, Porto Alegre, RS, Brazil
[3] HSL PUCRS, Oncol Res Unit, Porto Alegre, RS, Brazil
[4] Harvard Univ, Brookline, MA USA
[5] Mem Sloan Kettering Canc Ctr, Dept Surg, Urol Serv, New York, NY 10021 USA
[6] Mem Sloan Kettering Canc Ctr, New York, NY 10021 USA
[7] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA
[8] Univ Pittsburgh, Med Ctr, Pittsburgh, PA USA
[9] Harvard Univ, Sch Med, Dana Farber Canc Inst, Boston, MA 02115 USA
[10] Univ N Carolina, Chapel Hill, NC USA
[11] Univ Calgary, Tom Baker Canc Ctr, Calgary, AB, Canada
[12] Harvard Univ, Brigham & Womens Hosp, Sch Med, Boston, MA 02115 USA