M. Asim Rana, M. Ahad Qayyum, M. Hasan Siddiqui, R. Omer Siddiqui, M. Waseem, M. Javed, R. Pervaiz, M. Mansoor Hafeez, “Assessment of Predictors of Mortality in COVID-19 Patients Treated with Tocilizumab”, Pakistan Journal of Medical & Health Sciences, vol. 16, no. 10, p. 182, Nov. 2022.