E. D. . Ogiji, O. B. Ezeanosike, C. C. Ofor, E. Ezeanosike, C. C. Maduba, and S. Ghasi, “Mechanisms of action and adverse effects of the major therapeutic agents in trial for COVID-19 therapeutics: Review of literature”, Ann Clin Biomed Res, vol. 2, no. 2, Jul. 2021.