1. Poursina Hakim Digestive Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
2. Pooya Zist-Mabna Hakim Company, Poursina Hakim Institute, Isfahan, Iran
3. Department of Neurology, Isfahan University of Medical Sciences, Isfahan, Iran
4. Isfahan Neurosciences Research Centre (INRC), Isfahan University of Medical Sciences, Isfahan, Iran
5. Department of Neurology, Penn State Milton S. Hershey Medical Center, Hershey, PA, USA
6. Department of Health Policy, School of Management and Information, Iran University of Medical Sciences, Tehran
7. Iranian Celiac Association, Isfahan, Iran