S. Sarfaraz, Q. Shaikh, S. Iftikhar, F. Herekar, S. G. Saleem, and F. Kanani, “IS TOCILIZUMAB AN EFFECTIVE THERAPY FOR SEVERE COVID-19: A SINGLE CENTER STUDY”, J Ayub Med Coll Abbottabad, vol. 34, no. 4, pp. 751–758, Sep. 2022.