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Wertli, Maria Monika; Held, Ulrike; Lis, Angela; Campello, Marco; Weiser, Sherri (2018). Both positive and negative beliefs are important in patients with spine pain: findings from the Occupational and Industrial Orthopaedic Center registry. Spine Journal, 18(8), pp. 1463-1474. Elsevier 10.1016/j.spinee.2017.07.166
