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HACHIHIKO HIRAYAMA
Research Laboratory, Division of Fermentation and Chemical Products, Kohjin Co., Ltd.
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KAZUAKI GOHGI
Research Laboratory, Division of Fermentation and Chemical Products, Kohjin Co., Ltd.
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NORIMOTO URAKAWA
Department of Veterinary Pharmacology, Faculty of Agriculture, University of Tokyo
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MIYOSHI IKEDA
Department of Veterinary Pharmacology, Faculty of Agriculture, University of Tokyo