Jamil Muqtadir Bhatti,Syed Ali Raza,Noshirwan P.Gazder,Khizer Shamim,FNU Sameeullah,Irshad Batool Abro 2023. The outcome of patients with Severe COVID 19 treated with tocilizumab:a Retrospective Cohort study. Journal of Population Therapeutics and Clinical Pharmacology. 30, 6 (Jul. 2023), 463–478. DOI:https://doi.org/10.53555/jptcp.v30i6.2335.