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Toshiaki TANAKA
Institute of Gerontology, The University of Tokyo:Faculty of Health Sciences, Hokkaido University of Science
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Yasuhiro NAKAJIMA
Industrial Research Institute, Hokkaido Research Organization
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Hidefumi Matsushita
Sapporo Shuyukai Hospital
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Shunichi SUGIHARA
Sapporo Shuyukai Hospital
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Takashi IZUMI
School of Industrial and Welfare Engineering, Tokai University
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Norio KATO
Faculty of Health Sciences, Hokkaido University of Science
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Tomoya MIYASAKA
Faculty of Health Sciences, Hokkaido University of Science