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Welle-Strand GK, Kvamme O, Andreassen A, Ravndal E.Welle-Strand GK, et al.BMJ Case Rep. 2014 Dec 24;2014:bcr2014207207. doi: 10.1136/bcr-2014-207207.BMJ Case Rep. 2014.PMID: 25540212Free PMC article.