Affiliation: | 1. Department of Anesthesiology, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran;2. School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran;3. Pain research center, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran;4. Department of Otorhinolaryngology ‐ Head and Neck Surgery, Imam‐Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran |