1. Department of Medicine Johns Hopkins School of Medicine Baltimore Maryland USA
2. Department of Population and Quantitative Health Sciences Case Western Reserve University Cleveland Ohio USA
3. Department of Oncology, Sidney Kimmel Comprehensive Cancer Center Johns Hopkins School of Medicine Baltimore Maryland USA
4. Department of Pathology Johns Hopkins School of Medicine Baltimore Maryland USA
5. Department of Urology Johns Hopkins University School of Medicine Baltimore Maryland USA
6. Department of Oncology Moinhos de Vento Hospital Porto Alegre Brazil
7. Department of Oncology, Masonic Cancer Center University of Minnesota Medical Center Minneapolis Minnesota USA