1. World vision – Tigray Branch, Tigray, Ethiopia
2. College of Health Sciences, School of Public Health, Mekelle University, Mekelle, Ethiopia
3. College of Medicine and Health Sciences, Department of Public Health, Wachemo University, Hosanna, Ethiopia
4. Department of Health Extension, Hosanna Health Science College, Hosanna, Ethiopia
5. School of Medicine, Department of Orthopedics, Wachemo University, Hosanna, Ethiopia