1. Department of Hematology and Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
2. University of Gondar Referral Hospital Laboratory, University of Gondar, Gondar, Amhara Regional State, Ethiopia
3. Debre Birhan Referral Hospital Laboratory, Debre Birhan, North Shewa, Amhara Regional State, Ethiopia