Mohammed AH ALZobaidy, Ali H. AlbuRghaif, Hany A. Alhasany, Mena Akeel Naji. “Angiotensin-Converting Enzyme Inhibitors May Increase Risk of Severe COVID-19 Infection”. Annals of the Romanian Society for Cell Biology, vol. 25, no. 6, July 2021, pp. 17843-9, http://annalsofrscb.ro/index.php/journal/article/view/9147.