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Kei Sugawa
[Japan]
Department of Orthopaedics, Saiwai Tsurumi Hospital [Japan]
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Takeshi Matsuura
[Japan]
Department of Orthopaedics, Seikeikai Hospital [Japan] Department of Orthopaedics, Shimada Hospital [Japan]
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Hidekazu Nakai
[Japan]
Department of Orthopaedics, Daini Osaka Police Hospital [Japan]