1. Federal Teaching Hospital Birnin Kebbi, Kebbi State.
2. Afe Babalola University
3. University of Ilorin Teaching Hospital
4. Federal Neuropsychiatric Hospital Budo-Egba, Ilorin
5. Abubakar Tafawa Balewa University Teaching Hospital, Bauchi
6. South Faisaliyah PHC and Trainer Saudi Board of Family Medicine, Arar .