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 2022, 16, 182.