1. Endocrinology and Metabolism Department, Amasya Üniversity Sabuncuoğlu Şerefeddin Education and Research Hospital, Amasya, Turkey;
2. Endocrinology and Metabolism Department, Ankara City Hospital, Ankara, Turkey;
3. Nuclear Medicine Department, Ankara City Hospital, Ankara, Turkey;
4. Biochemistry Department, Mardin Public Health Laboratory, Mardin, Turkey;
5. Biochemistry Department, Ankara City Hospital, Ankara, Turkey;
6. Endocrinology and Metabolism Department, Tokat Public Hospital, Tokat, Turkey