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EIICHI AKITA
Kitakami Plant, Meiji Seika Kaisha, Ltd.
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YUKIO HORIUCHI
Pharmaceutical Development Laboratories, Meiji Seika Kaisha, Ltd.
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TAKEO MIYAZAWA
Central Research Laboratories, Meiji Seika Kaisha, Ltd.
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HAMAO UMEZAWA
Institute of Microbial Chemistry