它提供安全，简便，有效的治疗颈椎疼痛。
It provides safe, simple, and effective treatment of cervical pain.
均有不同程度的颈椎退行性改变和颈、肩、背部疼痛史。
They all had cervical degenerative change in different degree and neck-shoulder-back pain history.
均有不同程度的颈椎退行性改变和颈、肩、背部疼痛史。
They all had cervical degenerative change in different degree and neck-shoulder-back pain history.
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