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Eiji Yamashita
Department of Natural Products Research, Kyoto Pharmaceutical University Fine Chemical Group, Itano Refrigerated Food Co., Ltd.
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Shin Iida
Shikoku Kumiai Feedmill Co., Ltd.
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Nobuhiko Taniguchi
Department of Cultural Fisheries, Faculty of Agriculture, Kochi University
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Takao Matsuno
Department of Natural Products Research, Kyoto Pharmaceutical University