1. Department of Psychiatry, Ambo University College of Medicine and Health Science, Ambo, Ethiopia
2. Head of Graduate Program of Public Health at Rift Valley University, Addis Ababa, Ethiopia
3. University of Gondar College of Medicine and Health Science, Gondar, Ethiopia
4. Kotebe University of Education, Department of Psychology, Addis Ababa, Ethiopia
5. Department of Oncology, Addis Ababa University College of Health Sciences, Addis Ababa, Ethiopia