1. Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran.
2. Endocrinology and Metabolism Research Center, Institute of Basic and Clinic Physiology Science and Department of Internal Medicine, Kerman University of Medical Sciences, Kerman, Iran.
3. Department of Internal Medicine, Lolagar Hospital, Iran University of Medical Sciences, Tehran, Iran.
4. Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, Islamic Azad University, Mashhad Medical Branch, Mashhad, Iran.