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Emtner M, Hallin R, Arnardottir RH, Janson C.Emtner M, et al. Among authors: arnardottir rh.Ups J Med Sci. 2015 Mar;120(1):52-8. doi: 10.3109/03009734.2014.990124. Epub 2014 Nov 28.Ups J Med Sci. 2015.PMID: 25430624Free PMC article.