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Coffeng LE, Stolk WA, Hoerauf A, Habbema D, Bakker R, Hopkins AD, de Vlas SJ.Coffeng LE, et al. Among authors: hopkins ad.PLoS One. 2014 Dec 29;9(12):e115886. doi: 10.1371/journal.pone.0115886. eCollection 2014.PLoS One. 2014.PMID: 25545677Free PMC article.