Carter, B., Keevil, V., Anand, A., Osuafor, C., Goudie, R., Preller, J., Lowry, M., Clunie, S., Shenkin, S., McCarthy, K., Hewitt, J. & Quinn, T. 2022, 'The prognostic and discriminatory utility of the Clinical Frailty Scale and modified frailty Index compared to age', Geriatrics, 7(5), article no: 87. https://doi.org/10.3390/geriatrics7050087