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Jakobsson E, Gaston-Johansson F, Ohlén J, Bergh I.Jakobsson E, et al. Among authors: ohlen j.Scand J Public Health. 2008 Mar;36(2):177-82. doi: 10.1177/1403494807085375.Scand J Public Health. 2008.PMID: 18519282