About the Author

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Sam S. Chang, MD, MBAVice-Chair and Patricia and Rodes Hart ProfessorDepartment of Urologic Surgery and OncologyVanderbilt Medical Center, MCN A1302, Nashville TN 37232 Michael S. Cookson, MD, MMHC Professor & ChairDepartment of UrologyDonald D. Albers Chair in UrologyThe University of Oklahoma Health Sciences Center & The Stephenson Cancer Center