1. Department of Urology, School of Medicine, Louisiana State University Health Sciences Center, Shreveport, Louisiana;
2. Overton Brooks Veterans Administrative Medical Center, Shreveport, Louisiana; and
3. Department of Biochemistry and Molecular Biology, School of Medicine, Louisiana State University Health Sciences Center, Shreveport, Louisiana;
4. Division of Urology, CU School of Medicine, Aurora, Colorado;
5. Feist Weiller Cancer Center, Shreveport, Louisiana