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Gerritsen AA, Bakker C, Verhey FR, de Vugt ME, Melis RJ, Koopmans RT; 4C study team.Gerritsen AA, et al.J Am Med Dir Assoc. 2016 Apr 1;17(4):318-23. doi: 10.1016/j.jamda.2015.11.011. Epub 2016 Jan 5.J Am Med Dir Assoc. 2016.PMID: 26778489