1. Radiation Science Division, Korea Atomic Energy Research Institute, Jeongeup, Jeollabookdo 56212, Republic of Korea
2. State Key Laboratory of Veterinary Etiological Biology, National Foot and Mouth Disease Reference Laboratory, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730049, P.R. China
3. Department of Food and Animal Biotechnology, Seoul National University, Seoul 08826, Republic of Korea