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Archives of Gerontology and Geriatrics > 2018 > 74 > C > 44-48
Journal of Cardiology > 2017 > 70 > 1 > 80-85
Journal of the American Medical Directors Association > 2008 > 9 > 7 > 486-490
Journal of the American Medical Directors Association > 2007 > 8 > 8 > 538-540