The Prognostic and Discriminatory Utility of the Clinical Frailty Scale and Modified Frailty Index Compared to Age oleh Ben Carter, Victoria L. Keevil, Atul Anand, Christopher N. Osuafor, Robert J. B. Goudie, Jacobus Preller, Matthew Lowry, Sarah Clunie, Susan D. Shenkin, Kathryn McCarthy, Jonathan Hewitt, Terence J. Quinn