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Heiligenberg M, Verweij SP, Speksnijder AG, Morré SA, de Vries HJ, Schim van der Loeff MF.Heiligenberg M, et al. Among authors: verweij sp.BMC Res Notes. 2014 Jun 10;7:355. doi: 10.1186/1756-0500-7-355.BMC Res Notes. 2014.PMID: 24915990Free PMC article.