Al-Mazaideh, G. M., M. H. Shalayel, F. K. Al-Swailmi, and S. H. Aladaileh. “Vitamin D Is a New Promising Inhibitor to the Main Protease (Mpro) of COVID-19 by Molecular Docking”. Journal of Pharmaceutical Research International, Vol. 33, no. 29B, May 2021, pp. 186-91, doi:10.9734/jpri/2021/v33i29B31603.