[1] Durham Veterans Affairs Medical Center,Division of Urology
[2] Duke University School of Medicine,Department of Biostatistics and Bioinformatics
[3] Cedars-Sinai Medical Center,Division of Urology
[4] Oregon Health Sciences University,Department of Urology
[5] West Los Angeles Veterans Affairs Medical Center,Division of Urology
[6] University of California,Department of Urology
[7] University of California,Department of Urology
[8] Charlie Norwood Veterans Affairs Medical Center,Division of Urology
[9] Medical College of Georgia,Division of Urology