1. Department of Endocrinology, Gazi University Faculty of Medicine, Ankara, Turkey.
2. Department of Medical Biology and Genetics, Baskent University Faculty of Medicine, Ankara, Turkey.
3. Department of Medical Genetics, Gazi University Faculty of Medicine, Ankara, Turkey.
4. Department of Biostatistics, Baskent University Faculty of Medicine, Ankara, Turkey.
5. Department of Pharmacology, Gazi University Faculty of Medicine, Ankara, Turkey.