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Volkers KM, Scherder EJ.Volkers KM, et al.BMC Geriatr. 2011 Aug 9;11:38. doi: 10.1186/1471-2318-11-38.BMC Geriatr. 2011.PMID: 21827648Free PMC article.Clinical Trial.
Plooij B, van der Spek K, Scherder EJ.Plooij B, et al.Drugs Aging. 2012 May 1;29(5):377-84. doi: 10.2165/11630850-000000000-00000.Drugs Aging. 2012.PMID: 22550967
Volkers KM, Scherder EJ.Volkers KM, et al.Biomed Res Int. 2014;2014:762986. doi: 10.1155/2014/762986. Epub 2014 Mar 16.Biomed Res Int. 2014.PMID: 24757674Free PMC article.Clinical Trial.