Features of 20 133 UK patients in hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol: prospective observational cohort study (BMJ, 2020)

(untitled) - Docherty, AB; Harrison, EW; Green, CA; Hardwick, HE; Pius, R; Norman, L; Holden, KA; Read, JM; Dondelinger, F; Carson, G; Merson, L; Lee, J; et al.