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Association between Clinical Frailty Scale score and hospital mortality in adult patients with COVID-19 (COMET): an international, multicentre, retrospective, observational cohort study.
Sablerolles RSG, Lafeber M, van Kempen JAL, van de Loo BPA, Boersma E, Rietdijk WJR, Polinder-Bos HA, Mooijaart SP, van der Kuy H, Versmissen J, Faes MC; COMET research team. Sablerolles RSG, et al. Lancet Healthy Longev. 2021 Mar;2(3):e163-e170. doi: 10.1016/S2666-7568(21)00006-4. Epub 2021 Feb 9. Lancet Healthy Longev. 2021. PMID: 33655235 Free PMC article.