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Cohen J, Bilsen J, Miccinesi G, Löfmark R, Addington-Hall J, Kaasa S, Norup M, van der Wal G, Deliens L.Cohen J, et al.BMC Public Health. 2007 Oct 8;7:283. doi: 10.1186/1471-2458-7-283.BMC Public Health. 2007.PMID: 17922894Free PMC article.