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Salo J, Jaatinen A, Söderström M, Viljanen MK, Hytönen J.Salo J, et al. Among authors: viljanen mk.PLoS One. 2015 Mar 27;10(3):e0121512. doi: 10.1371/journal.pone.0121512. eCollection 2015.PLoS One. 2015.PMID: 25816291Free PMC article.