1. Division of Urologic Oncology, Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
2. Department of Urology, Creighton University, Omaha, Nebraska
3. Department of Biostatistics and Bioinformatics, Fox Chase Cancer Center, Philadelphia, Pennsylvania
4. Division of Genitourinary Oncology, Department of Hematology and Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania