1. Department of Dermatology and Venereology, Ankara Occupational Diseases Hospital, Ankara, Turkey
2. Clinic of Pharmacology, Ankara Occupational Diseases Hospital, Ankara, Turkey
3. Clinic of Family Medicine, Ankara Occupational Diseases Hospital, Ankara, Turkey
4. Department of Public Health, Faculty of Medicine, Yıldırım Beyazıt University, Ankara, Turkey