1. Departments of Urology and
2. Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana 70112;
3. Department of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322;
4. Biomolecular Research Annex, University of Central Florida, Orlando, Florida 32816; and
5. Division of Cardiology, Department of Medicine, The Johns Hopkins Hospital, Baltimore, Maryland 21287