1. University of Health Sciences Sanliurfa Mehmet Akif İnan Education and Research Hospital, Department of Endocrinology and Metabolism, Sanliurfa, Turkey
2. Kocaeli University School of Medicine, Department of Endocrinology and Metabolism, Kocaeli, Turkey
3. Anadolu Medical Center, Department of Endocrinology and Metabolism, Kocaeli, Turkey
4. Kocaeli University School of Medicine, Department of Oncology, Kocaeli, Turkey
5. Kocaeli University School of Medicine, Department of Biostatistics and Medical Informatics, Kocaeli, Turkey.