1. Department of Biochemistry, Chonbuk National University Medical School, Jeonju 561-180, Korea.
2. Department of Anatomy, Chonbuk National University Medical School, Jeonju 561-180, Korea.
3. Department of Urology, Chonbuk National University Medical School, Jeonju 561-180, Korea.
4. Department of Pharmacology, Chonbuk National University Medical School, Jeonju 561-180, Korea.
5. Institute of Cardiovascular Research, Chonbuk National University Medical School, Jeonju 561-180, Korea.