Mah, J. C., J. Godin, S. J. Stevens, J. M. Keefe, K. . Rockwood, and M. K. Andrew. “Social Vulnerability and Frailty in Hospitalized Older Adults”. Canadian Geriatrics Journal, vol. 26, no. 3, Sept. 2023, pp. 390-9, doi:10.5770/cgj.26.638.