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OSAMU JOHDO
Central Research Laboratories, Mercian Corporation
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HIROSHI TONE
Central Research Laboratories, Mercian Corporation
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ROKURO OKAMOTO
Central Research Laboratories, Mercian Corporation
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AKIHIRO YOSHIMOTO
Central Research Laboratories, Mercian Corporation Present address: Faculty of Applied Biological Science, Hiroshima University
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HIROSHI NAGANAWA
Institute of Microbial Chemistry
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TSUTOMU SAWA
Institute of Microbial Chemistry
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TOMIO TAKEUCHI
Institute of Microbial Chemistry