1. Department of Human Physiology, Madda Walabu University, Bale Goba, Ethiopia
2. Department of Human Physiology, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Ethiopia
3. Department of Human Physiology, School of Medicine, Debre Markos University, Debre Markos, Ethiopia
4. Department of Medical Nursing, School of Nursing, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
5. Department of Medical Biochemistry, Madda Walabu University, Bale Goba, Ethiopia