1. Department of Psychological Medicine, College of Medicine, University of Nigeria, Enugu, Nigeria
2. Department of Medicine, College of Medicine, Imo State University, Orlu, Nigeria
3. Department of Psychiatry, Federal Medical Centre, Keffi, Nasarawa State, Nigeria
4. Department of Mental Health, Faculty of Medicine, Nnamdi Azikiwe University, Nnewi, Anambra State, Nigeria