Vizir, V. A., A. S. Sadomov, and O. V. Demidenko. “Use of Tocilizumab in the Combination Treatment of a COVID-19 Patient With Concomitant Rheumatoid Arthritis (a Case Report)”. Zaporozhye Medical Journal 23, no. 5 (September 1, 2021): 739–748. Accessed May 3, 2024. http://zmj.zsmu.edu.ua/article/view/232322.