Drake, Thomas M, Fairfield, Cameron J, Pius, Riinu, Knight, Stephen R, Norman, Lisa, Girvan, Michelle, Hardwick, Hayley E, Docherty, Annemarie B, Thwaites, Ryan S, Openshaw, Peter J M, Baillie, J Kenneth, Harrison, Ewen M, Semple, Malcolm G, Investigators, ISARIC4C, "Non-steroidal anti-inflammatory drug use and outcomes of COVID-19 in the ISARIC Clinical Characterisation Protocol UK cohort: a matched, prospective cohort study", The Lancet Rheumatology, 2021