Mayhew AJ, Griffith LE, Gilsing A, Beauchamp MK, Kuspinar A, Raina P. The Association Between Self-Reported and Performance-Based Physical Function With Activities of Daily Living Disability in the Canadian Longitudinal Study on Aging. J Gerontol A Biol Sci Med Sci. 2020 Jan 1;75(1):147-154. doi: 10.1093/gerona/glz122. PMID: 31081885.