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Takao ITO
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Sadao MIURA
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Kan-ichi OHSHIMA
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Shigeru NUMAKUNAI
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Author's Organization:Department of Veterinery Pathology,Faculty of Agriculture,Iwate University Department of Veterinery Pathology,Faculty of Agriculture,Iwate University Department of Veterinery Pathology,Faculty of Agriculture,Iwate University Department of Veterinery Pathology,Faculty of Agriculture,Iwate University