1. New Drug Discovery Lab., Hyundai Pharmaceutical Co. Ltd., Gyeong-Gi Bio-Center, Suwon 443-270, Republic of Korea
2. Bio-therapy Human Resources Center, Animal Medical Center and Department of Veterinary Physiology, College of Veterrinary Medicine, Chonnam National University, Gwangju 500-757, Republic of Korea
3. College of Pharmacy, Gachon University, Incheon 406-840, Republic of Korea