1. Department of Endocrinology and Metabolism, Uludag University Medical School, Bursa, Turkey.
2. Department of Endocrinology and Metabolism, Bursa Yuksek Ihtisas Training and Research Hospital, Bursa, Turkey.
3. Department of Internal Medicine, Kayseri Training and Research Hospital, Bursa, Turkey.
4. Department of Internal Medicine, Afyonkarahisar State Hospital, Afyonkarahisar, Turkey.
5. Department of Biochemistry, Uludag University Medical School, Bursa, Turkey.