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Author (up) Title Year Publication Volume Pages
Nordstoga, A.L.; Nilsen, T.I.L.; Vasseljen, O.; Unsgaard-Tondel, M.; Mork, P.J. The influence of multisite pain and psychological comorbidity on prognosis of chronic low back pain: longitudinal data from the Norwegian HUNT Study 2017 BMJ Open 7 e015312