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Ryuuichi Tsukada
Department of Orthodontics, School of Dentistry, Hokkaido University
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Yoshiaki Satoh
Department of Orthodontics, School of Dentistry, Hokkaido University
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Hiroyuki Ishikawa
Department of Orthodontics, School of Dentistry, Hokkaido University
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Shinji Nakamura
Department of Orthodontics, School of Dentistry, Hokkaido University