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Lindström J, Nordeman L, Hagström B.Lindström J, et al.Scand J Prim Health Care. 2015;33(4):275-82. doi: 10.3109/02813432.2015.1114348. Epub 2015 Dec 7.Scand J Prim Health Care. 2015.PMID: 26643196Free PMC article.