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K. ITABASHI
Mukden Institute for Infectious Diseases of Animals, S. M. R. Co.
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S. WATANABE
Mukden Institute for Infectious Diseases of Animals, S. M. R. Co.
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S. ITO
Mukden Institute for Infectious Diseases of Animals, S. M. R. Co.
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Y. TAJIMA
Mukden Institute for Infectious Diseases of Animals, S. M. R. Co.
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K. OTAKI
Mukden Institute for Infectious Diseases of Animals, S. M. R. Co.