1. Department of Urology, New York–Presbyterian Hospital, Weill Cornell Medical College, 525 E 68th St, Starr 900, New York, NY 10021.
2. Department of Healthcare Policy and Research, Weill Cornell Medical College, New York, NY.
3. Department of Radiology, Weill Cornell Medical College, New York, NY.
4. Present affiliation: University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH.