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H. ITAKURA
Nagasaki University
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H. YAMASHITA
Nagasaki University
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T. SETOGUCHI
Nagasaki University
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H. TERAO
Nagasaki University
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T. KANDA
Nagasaki University
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Y. KAWASAKI
Tokyo University of Agriculture
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T. MIZUNUMA
Central Research Laboratories of Kikkoman Shoyu Co., Ltd.
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H. HITOKOTO
Dept.of Bacteriology, Tokyo Metropolitan Research Laboratory of Public Health
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S. MOROZUMI
Dept.of Bacteriology, Tokyo Metropolitan Research Laboratory of Public Health
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T. WAUKE
Dept.of Bacteriology, Tokyo Metropolitan Research Laboratory of Public Health