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肩の研究②・肩可動(前面)の基本
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Movement of the Shoulder: Front
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肩膀研究②・肩膀可动的基本（前面）
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肩の違和感と修正法まとめ
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Shoulder : Summary of the common mistake and the correcting method
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肩膀的违和感以及修正总结
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