Surkan, M. ., Rajabali, N. ., Bagshaw, S. M. ., Wang, X. . and Rolfson, D. . (2020) “Interrater Reliability of the Clinical Frailty Scale by Geriatrician and Intensivist in Patients Admitted to the Intensive Care Unit”, Canadian Geriatrics Journal. Markham, Canada, 23(3), pp. 223–229. doi: 10.5770/cgj.23.398.