Authors
1 Assistant Professor of Otorhinolaryngology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
2 Assistant Professor of Anesthesiology , Department of Anesthesiology, Baqiyatallah University of Medical Sciences, Tehran, Iran.
3 Medical Education, Ministry of Health and Medical Education, Tehran, Iran.
4 Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
5 Students Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Abstract
Keywords