Affiliation: | 1. Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Anyang, 430-757, Republic of Korea 2. Syntekabio, Inc., Seoul, 136-130, Republic of Korea 3. Optifarm Solution, Chunan, 331-834, Republic of Korea 4. Department of Infectious Disease, College of Veterinary Medicine, Kyungpook National University, Taegu, 702-701, Republic of Korea
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