Burt, J. R., J. Godin, J. Filion, M. Montero-Odasso, K. Rockwood, M. K. Andrew, and R. Camicioli. “Frailty Prevalence in the COMPASS-ND Study of Neurodegenerative Disorders”. Canadian Geriatrics Journal, vol. 22, no. 4, Dec. 2019, pp. 205-12, doi:10.5770/cgj.22.392.