1. Department of Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Mekelle University, Mekelle, Tigray, Ethiopia
2. Department of Pharmacology and Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
3. Department of Pediatrics, School of Medicine, St. Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia