1. Department of Clinical Nursing, College of Health Sciences, Arsi University, Asella, Ethiopia, P.O. Box: 196.
2. Department of Pharmacy, College of Health Sciences, Arsi University, Asella, Ethiopia, P.O. Box: 196.
3. Department of Pharmacy, School of Pharmacy, Kampala International University, Western Campus, Ishaka, Uganda, P.O. Box: 20000.