Naveed Nazir Shah (2022) “Evaluation of Surrogate Risk Factors for Severe Progression of COVID-19 in Tobacco Smoking Sub-Population and its Possible Amelioration by Immune Modulators”, Global Journal of Medical Research, 22(K2), pp. 67–79. Available at: https://medicalresearchjournal.org/index.php/GJMR/article/view/102185 (Accessed: 6 May 2024).