COVID-19(76) SARS-CoV-2(40) Patient(26) Anti-inflammatory(24) Treatment(23) Inflammation(20) antioxidant(19) Vaccine(17) reported(17) Efficacy(16) outcome(16) Cytokines(16) Cytokine storm(15) Evidence(15) administration(15) disease(15) COVID-19 patients(15) Symptom(14) SARS-COV-2 infection(14) Antiviral(14) effective(14) hospital(13) reducing(12) Intervention(12) evaluated(12) addition(12) SARS-CoV-2.(12) conducted(12) Mortality(12) immune response(12)