1. Department of Nursing, School of Health Sciences, College of Medicine and Health Sciences, Madda Walabu University, Bale Robe, Oromia 247, Ethiopia
2. Department of Surgery, City of Hope National Medical Center, Duarte, CA, USA
3. Division of Nursing Research and Education, City of Hope Medical Center, Duarte, CA, USA
4. School of Nursing, College of Medicine and Health Sciences, Hawassa University, Hawassa, Ethiopia
5. School of Nursing, College of Medicine and Health Sciences, Wachemo University, Hosanna, Ethiopia