1. Department of Infectious Diseases, College of Veterinary Medicine, KRF Zoonotic Disease Priority Research Institute, Brain Korea 21 for Veterinary Science, Seoul National University
2. Department of Infectious Diseases, College of Veterinary Medicine, KRF Zoonotic Disease Priority Research Institute, Brain Korea 21 for Veterinary Science, Seoul National University, Seoul 151–742, Korea
3. CJ Research Institute of Biotechnology, CJ CheilJedang Co.
4. CJ Research Institute of Biotechnology, CJ CheilJedang Co., Seoul 157–724, Korea