1. Mean Neck Disability Index (NDI) values pretreatment and at each follow-up interval for all patients (N = 25) as well as for patients with ≤48 months of symptoms (n = 21).
Mean Neck Disability Index (NDI) values pretreatment and at each follow-up interval for all patients (N = 25) as well as for patients with ≤48 months of symptoms (n = 21).
Alejandro Reyes-Sanchez et al. Int J Spine Surg 2010;4:9-15
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