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van de Ven G, Draskovic I, Adang EM, Donders RA, Post A, Zuidema SU, Koopmans RT, Vernooij-Dassen MJ.van de Ven G, et al. Among authors: koopmans rt.BMC Geriatr. 2012 Jan 3;12:1. doi: 10.1186/1471-2318-12-1.BMC Geriatr. 2012.PMID: 22214264Free PMC article.Clinical Trial.
Zuidema SU, van der Meer MM, Pennings GA, Koopmans RT.Zuidema SU, et al. Among authors: koopmans rt.Tijdschr Gerontol Geriatr. 2006 Mar;37(1):19-24.Tijdschr Gerontol Geriatr. 2006.PMID: 16529151Dutch.
Koopmans RT, van der Sterren KJ, van der Steen JT.Koopmans RT, et al.Int J Geriatr Psychiatry. 2007 Apr;22(4):350-5. doi: 10.1002/gps.1680.Int J Geriatr Psychiatry. 2007.PMID: 17022107