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Update of Cochrane Database Syst Rev. 2004;(1):CD004249
AUTHORS' CONCLUSIONS: Cervical manipulation and mobilisation produced similar changes. Either may provide immediate - or short-term change; no long-term data are available. Thoracic manipulation may improve pain and function. Optimal techniques and dose are unresolved. Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.