Beronja B, Stevanović O, Nikolić N, Mitrović N, Gazibara T, Todorović N, Filipović A, Dotlic J, Stjepanović M, Simić J, Milosevic I (2025) Tocilizumab treatment of COVID-19: relevance of delay in therapy initiation in middle-income countries. J Infect Dev Ctries 19:192–201. doi: 10.3855/jidc.19914