1. CMRI, Department of Pharmacology, School of Medicine, Kyungpook National University Medical School, Daegu 700-422
2. School of Life Sciences and Biotechnology, Kyungpook National University, Daegu 702-701
3. Department of Immunology, School of Medicine, Keimyung University, Taegu 700-712
4. College of Pharmacy, Woosuk University, Jeonju 565-701, South Korea