1. School of Nursing, College of Medicine and Health Sciences, Department of Surgical Nursing, University of Gondar, Gondar, Ethiopia
2. School of Nursing, College of Medicine and Health Sciences, Department of Emergency and Critical Care Nursing, University of Gondar, Gondar, Ethiopia
3. School of Nursing, College of Medicine and Health Sciences, Department of Comprehensive Nursing, University of Gondar, Gondar, Ethiopia
4. Department of Biostatistics and Epidemiology, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia