1. Growth and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran.
2. Pediatrics Center of Excellence, Tehran University of Medical Sciences, Tehran, Iran.
3. Medical Genetic Group, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
4. Medical Genetic Group, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran.
5. Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.
6. Endocrine and Metabolic Research Center, Tehran University of Medical Sciences, Tehran, Iran.
7. Department of Pediatrics, Mount Sinai School of Medicine, New York, New York.
8. MRC-Holland, Amsterdam, The Netherlands.