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Kimitaka Fukuda
Department of Orthopedic Surgery, Hokkaido University
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Shigeo Matsuno
Department of Orthopedic Surgery, Hokkaido University
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Toshihiko Ogino
Department of Orthopedic Surgery, Hokkaido University
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Akio Minami
Department of Orthopedic Surgery, Hokkaido University
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Seiichi Ishii
Department of Orthopedic Surgery, Sapporo Medical College