1. Pain Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
2. Department of Anesthesiology, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
3. Canadian Optic & Laser Production Center, British Columbia, Canada
4. Department of Orthopedics, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
5. Farzan Clinical Research Institute, Tehran, Iran