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Cerezo-T\u00e9llez E, Torres-Lacomba M, Mayoral-Del Moral O, S\u00e1nchez-S\u00e1nchez B, Dommerholt J, Guti\u00e9rrez-Ortega C. Prevalence of myofascial pain syndrome in chronic non-specific neck pain:A population-based cross-sectional descriptive study. Pain Med, <b>17<\/b>:2369-2377, 2016.","DOI":"10.1093\/pm\/pnw114"},{"key":"30","doi-asserted-by":"crossref","unstructured":"30. Nakamura T, Murakami G, Noriyasu S, Yoshio M, Sato I, Uchiyama E. Morphometrical study of arteries and veins in the human sheet-like muscles (pectoralis major, latissimus dorsi, gluteus maximus and trapezius) with special reference to a paradoxical venous merging pattern of the trapezius. Ann Anat, <b>188<\/b>:243-253, 2006.","DOI":"10.1016\/j.aanat.2005.11.011"},{"key":"31","doi-asserted-by":"crossref","unstructured":"31. Larsson R, \u00d6berg \u00c5P, Larsson SE. Changes of trapezius muscle blood flow and electromyography in chronic neck pain due to trapezius myalgia. 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