Karimi, Mehran, et al. “Prevalence and Severity of Coronavirus Disease 2019 (COVID-19) in Transfusion Dependent and Non-Transfusion Dependent β-Thalassemia Patients and Effects of Associated Comorbidities: An Iranian Nationwide Study: Prevalence and Severity of COVID-19 in β-Thalassemias”. Acta Biomedica Atenei Parmensis, vol. 91, no. 3, Sept. 2020, p. e2020007, https://doi.org/10.23750/abm.v91i3.10155.