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Uijen AA, van de Lisdonk EH.Uijen AA, et al.Eur J Gen Pract. 2008;14 Suppl 1:28-32. doi: 10.1080/13814780802436093.Eur J Gen Pract. 2008.PMID: 18949641
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Bischoff EW, Uijen A, van der Wel M.Bischoff EW, et al.Praxis (Bern 1994). 2010 May 26;99(11):669-70. doi: 10.1024/1661-8157/a000156.Praxis (Bern 1994). 2010.PMID: 20506092German.No abstract available.