1. Division of Laboratory Techniques, Vocational School of Medical Sciences, Turgut Ozal University, Ankara, Turkey.
2. Department of Biochemistry, Medical Faculty, Gaziosmanpasa University, Tokat, Turkey.
3. Private Bilecik Orhangazi Dialysis Center, Bilecik, Turkey.
4. Division of Ophthalmology, Dr. Abdurrahman Yurtaslan Ankara Oncology Education and Research Hospital, Ankara, Turkey.
5. Department of Pharmacology, Medical Faculty, Turgut Ozal University, Ankara, Turkey.
6. Department of Medical Biochemistry, Medical Faculty, Hacettepe University, Ankara, Turkey.
7. Division of Biology Education, Faculty of Education, Gazi University, Ankara.
8. Division of Chemistry, Ankara Branch of Council of Forensic Medicine, Ankara, Turkey.