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*Naoyuki Matsui
Forestry and forest products research institute
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Tatsurou Ohira
Forestry and forest products research institute
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Tamami Kasetani
Chiba Prefectural Forestry Research Center
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Hidenori Hamaji
Fukuoka Prefectural Forestry Research Center
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Mitsuyoshi Yatagai
Graduate School of Agricultural and Life Sciences, The University of Tokyo