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Oskarsson V, Orsini N, Sadr-Azodi O, Wolk A.Oskarsson V, et al.CMAJ. 2014 Mar 18;186(5):338-44. doi: 10.1503/cmaj.131064. Epub 2014 Jan 27.CMAJ. 2014.PMID: 24468693Free PMC article.