1. Clinic of Family Medicine, Gülşehir District Integrated Hospital, Nevşehir
2. Department of Family Medicine, Faculty of Medicine, Samsun University, Samsun
3. Department of Family Medicine, Samsun Training and Research Hospital, Samsun
4. Department of Biochemistry, Institute of Health Sciences, Ondokuz Mayıs University, Samsun
5. Samsun Provincial Health Department, Samsun