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*Tadahisa Urano
Forestry and Forest Products Research Institute
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Shoichi Saito
Yamagata Prefectural Forest Research and Instruction Center
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Toshihide Hiruta
Fukushima Prefectural Forest Research Centre
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Koichi Nunokawa
Niigata Prefectural Forest Research Institute
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Masatsugu Osawa
Yamanashi Forest Research Institute
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Mitsuhiro Okada
Nagano Forestry Research Center