1. Department of Chemistry and Biochemistry; The University of Texas at Dallas; 800 W. Campbell Rd. Richardson TX 75080 USA
2. Department of Urology; The University of Texas Southwestern Medical Center; 5323 Harry Hines Blvd. Dallas TX 75390 USA
3. Department of Pathology; The University of Texas Southwestern Medical Center; 5323 Harry Hines Blvd. Dallas TX 75390 USA