1. Cardiovascular Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
2. Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
3. Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
4. Tabriz University of Medical Sciences, Tabriz, Iran
5. University of Florida, Department of Neurosurgery, USA
6. Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
7. Fatemeh Zahra Hospital, Iran University of Medical Sciences, Tehran, Iran
8. Department of Pediatrics, Tabriz University of Medical Sciences, Tabriz, Iran