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Marttila A, Johansson E, Whitehead M, Burström B.Marttila A, et al. Among authors: burstrom b.BMC Public Health. 2012 Jul 12;12:517. doi: 10.1186/1471-2458-12-517.BMC Public Health. 2012.PMID: 22789127Free PMC article.
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