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*Tadahisa Urano
Forestry and Forest Products Research Institute
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Hiroshi Kitajima
Forestry and Forest Products Research Institute
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Shun'ichi Makino
Forestry and Forest Products Research Institute
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Toshio Arihara
Fukushima Prefectural Forestry Research Center
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Masatsugu Osawa
Yamanashi Prefectural Forest Reseach Institute
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Shouichi Saito
Yamagata Prefectural Forest Research and Instruction Center
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Mitsuhiro Okada
Nagano Prefectural Forestry Research Center