Bohnsack, A., K. . Faig, A. Cook, S. Gionet, J. Shanks, S. Benjamin, A. . Steeves, C. MacLellan, A. . Flewelling, C. McGibbon, and P. Jarrett. “Retrospective Use of the Pictorial Fit-Frail Scale for Determination of Frailty Level in Hospitalized Older Adults With a Hip Fracture”. Canadian Geriatrics Journal, vol. 26, no. 3, Sept. 2023, pp. 400-4, doi:10.5770/cgj.26.689.