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首の可動研究①・首の骨と筋肉変化
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Structure of the neck: Movement and muscle changes
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颈部可动研究①・颈部的骨骼和肌肉变化
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首の違和感と修正法
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Around the Neck : Tutorial summary
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■中文
颈部的违和感以及修正教程总结
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