1 Department of Urology, University of Washington, Seattle, WA, USA.
2 Department of Urology, University of Washington, Seattle, WA, USA; Fred Hutchinson Cancer Center, Seattle, WA, USA.
3 Fred Hutchinson Cancer Center, Seattle, WA, USA; Division of Oncology, Department of Medicine, University of Washington, Seattle, WA, USA. Electronic address: pgrivas@uw.edu.