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Keiko IZUMI
Faculty of Policy Studies, Iwate Prefectural University, Takizawa, Japan
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Fumiya ODANAKA
Faculty of Policy Studies, Iwate Prefectural University, Takizawa, Japan ECHNA Corporation, Morioka, Japan
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Ikumi OTSUKA
Tohoku Research Center, Forestry and Forest Products Research Institute, Morioka, Japan