Kashefizadeh, Alireza, et al. “Clinical Features and Short-Term Outcomes of COVID-19 in Tehran, Iran: An Analysis of Mortality and Hospital Stay”. Acta Biomedica Atenei Parmensis, vol. 91, no. 4, Nov. 2020, p. e2020147, https://doi.org/10.23750/abm.v91i4.10206.