1. Debre Tabor Hospital, Debre Tabor, Ethiopia
2. Psychiatry Department, University of Gondar, P.O. Box 196, Gondar, Ethiopia
3. Amanuel Mental Specialized Hospital, P.O. Box 1971, Addis Ababa, Ethiopia
4. College of Health Sciences, Debre Tabor University, P.O. Box 272, Debre Tabor, Ethiopia
5. College of Medicine and Health Sciences, Wolaita Sodo University, P.O. Box 138, Wolaita Sodo, Ethiopia