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Harju M, Keski-Nisula L, Georgiadis L, Raatikainen K, Räisänen S, Heinonen S.Harju M, et al.BMC Public Health. 2015 Jan 28;15:27. doi: 10.1186/s12889-015-1357-6.BMC Public Health. 2015.PMID: 25626773Free PMC article.