OUTCOMES OF TOCILIZUMAB THERAPY IN SEVERE OR CRITICAL COVID-19 PATIENTS: A RETROSPECTIVE COHORT, SINGLE-CENTRE STUDY Article Abdelnaby H., Aboelhassan W., Al-Jarallah M., Rajan R., Dashti R., Zhanna K.D., Alsaber A.R., Ashry I., Abdullah M., Abd El-Aleem A., Mahmoud Fouad A. Tropical Medicine and International Health. John Wiley and Sons Inc. Vol. 26. 2021. P. 1689-1699