European Journal of Ageing (2013) - Comments
pubmed: 24319405  doi: 10.1007/s10433-013-0279-3  issn: 1613-9372  issn: 1613-9380 

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Miranda L. Davies, Mary L. M. Gilhooly, Kenneth J. Gilhooly, Priscilla A. Harries, Deborah Cairns