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van der Vleuten PA, Rasoul S, Huurnink W, van der Horst IC, Slart RH, Reiffers S, Dierckx RA, Tio RA, Ottervanger JP, De Boer MJ, Zijlstra F.van der Vleuten PA, et al. Among authors: reiffers s.BMC Cardiovasc Disord. 2008 Feb 23;8:4. doi: 10.1186/1471-2261-8-4.BMC Cardiovasc Disord. 2008.PMID: 18294397Free PMC article.