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Spaapen F, van den Akker GG, Caron MM, Prickaerts P, Rofel C, Dahlmans VE, Surtel DA, Paulis Y, Schweizer F, Welting TJ, Eijssen LM, Voncken JW.Spaapen F, et al. Among authors: eijssen lm.PLoS One. 2013;8(3):e58083. doi: 10.1371/journal.pone.0058083. Epub 2013 Mar 6.PLoS One. 2013.PMID: 23483971Free PMC article.