[1] University of Gondar,Department of Hematology and Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences
[2] University of Gondar,Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences
[3] University of Gondar,Department of Clinical Chemistry, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences
[4] University of Gondar,School of Nursing, College of Medicine and Health Sciences
[5] University of Gondar,School of Medicine, College of Medicine and Health Sciences