1. Department of Public Health, Eskisehir Osmangazi University, Eskisehir, Turkey
2. District Health Directorate of Unye, Ordu, Turkey
3. District Health Directorate of Nevsehir, Nevsehir, Turkey
4. District Health Directorate of Cankaya, Ankara, Turkey
5. Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
6. District Health Directorate of Ardahan, Ardahan, Turkey