1. Department of Operating Room Technology, School of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
2. Department of Operating Room Technology, Maragheh University of Medical Sciences, Maragheh, Iran
3. Shohada Educational Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
4. Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
5. Department of Operating Room Technology, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran