1. Department of Oriental Medicinal Material & Processing College of Life Science, KyungHee University, Yongin, Kyunggi 446-701, Republic of Korea
2. Division of Respiratory Viruses, Center for Infectious Diseases, National Institute of Health, South Korea CDC, Osong Health Technology Administration Complex, Cheongwon-gun, Chungbuk, 363-951, Republic of Korea
3. Department of Marine Biotechnology, Anyang University, Incheon 417-833, Republic of Korea