Maha Qasim 2022. Susceptibility of SARS-CoV-2 COVID-19 Infection among Smokers/Tobacco Users Upregulating the Expression of Angiotensin-Converting Enzyme-2 (ACE2). Perspective of Recent Advances in Medical Research Vol. 2. (Dec. 2022), 128–133. DOI:https://doi.org/10.9734/bpi/pramr/v2/4385A.