1 Hematology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
2 Zafar Adult Thalassemia Clinic, Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran.
3 Pediatric Department, Jahrom University of Medical Sciences, Jahrom, Iran.
4 Pediatric and Adolescent Outpatient Clinic, Quisisana Hospital, Ferrara, Italy.
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To the editor.
1. Comparison of demographic data and clinical characteristics [ Mean ±
SD, numbers (n) and %] amongst three groups of β-thalassemias patients
with confirmed COVID-19 based on disease severity.
1. Frequency of different comorbidities amongst the 3 groups of
confirmed COVID-19 patients with β-thalassemias based on disease