1. Lank Center for Genitourinary Oncology; Dana-Farber Cancer Institute, Harvard Medical School; Boston Massachusetts
2. Department of Biostatistics and Computational Biology; Dana-Farber Cancer Institute; Boston Massachusetts
3. Oncoclinic Group, Alemao Oswaldo Cruz Hospital; Sao Paulo Brazil
4. Department of Clinical Oncology; University Hospital 12 de Octubre; Madrid Spain