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Xiaoyu SHEN
Dept. Agric. Chem., Univ. Tokyo:Kunming Inst. Botany, Acad. Sinica
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Akira ISOGAI
Dept. Agric. Chem., Univ. Tokyo
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Kazuo FURIHATA
Inst. Applied Microbiologv. Univ. Tokyo
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Hidetoshi KANIWA
Yamanouchi Parmaceutical Co., Ltd.
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Handong SUN
Kunming Inst. Botany, Acad. Sinica
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Akinori SUZUKI
Dept. Agric. Chem., Univ. Tokyo