1. Department of Biochemistry, Faculty of Medicine, Bülent Ecevit University, 67630 Zonguldak, Turkey
2. Department of Endocrine and Metabolism, Faculty of Medicine, Bülent Ecevit University, 67630 Zonguldak, Turkey
3. Department of Biostatistics, Faculty of Medicine, Bülent Ecevit University, 67630 Zonguldak, Turkey
4. Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Bülent Ecevit University, 67630 Zonguldak, Turkey