1. Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2. Medical Research Development Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3. Division of Endocrinology and Metabolism, Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia
4. Department of Endocrinology, Royal Devon and Exeter Hospital, Exeter, UK
5. Department of Endocrinology and General Internal Medicine, University hospital Brussels, Free UZ Brussels(VUB), Brussels, Belgium
6. Faculty of Medicine and surgery, University of Santo Tomas, Manila, Philippines
7. The First Department of Medicine, Wakayama Medical University, Wakayama, Japan