1. Department of Ophthalmology, Faculty of Medicine, Fırat University, Elazığ, Turkey
2. Department of Ophthalmology, Van Training and Research Hospital, Van, Turkey
3. Department of Ophthalmology, Dr.Kemal Beyazıt State Hospital, Türkoğlu, Turkey
4. Department of Biochemistry, Faculty of Medicine, Fırat University, Elazığ, Turkey
5. Department of Pathology, Faculty of Veterinary Medicine, Fırat University, Elazig, Turkey