1. Endocrine Research Center, Research Institute for Endocrine Sciences, Shaheed Beheshti University of Medical Sciences, P.O. Box 19395-4763, Tehran, Iran
2. Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3. Departments of Oncology, Medicine, Obstetrics, Gynecology, Pharmacology, and Physiology, Georgetown University Medical Center, Washington, DC 20057, USA