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Hammer HB, Michelsen B, Provan SA, Sexton J, Lampa J, Uhlig T, Kvien TK.Hammer HB, et al. Among authors: sexton j.Arthritis Care Res (Hoboken). 2020 Jan;72(1):27-35. doi: 10.1002/acr.23815.Arthritis Care Res (Hoboken). 2020.PMID: 30474932