Zhongguo zhen jiu = Chinese acupuncture & moxibustion
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To probe into the correlativity of the therapeutic effect of acupuncture combined with traction on prolapse of lumbar intervertebral disc with the three-dimensional location. ⋯ The three-dimensional location can objectively show the size, direction, position, and the characteristics of the protruded discs, and correctly infer the pathological changes of the affected nerve root. Acupuncture combined with tract has a better effect on I plane, 1-2 zone, and a area.