COVID-19(62) Treatment(34) SARS-CoV-2(25) Patient(25) reported(21) coronavirus(18) COVID‐19(18) Mortality(17) risk(15) Efficacy(15) Tocilizumab(15) clinical trial(15) Trial(15) patients with COVID-19(14) database(14) Evidence(12) Serious Adverse Events(12) searched(11) Remdesivir(11) Randomized controlled trial(11) outcome(11) randomized clinical trial(11) RCT(11) SARS‐CoV‐2(10) Abstract(10) dose(10) coronavirus disease(10) Concentration(10) lung(9) systematic review(9)