1. Department of Health Information Technology, Khalkhal University of Medical Sciences, Khalkhal, Iran
2. School of Medicine and Allied Medical Sciences, Ardabil University of Medical Sciences, Ardabil, Iran
3. Internal Medicine Department, Imam Khomeini Hospital Complex, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
4. School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
5. Iranian Research Center for HIV/AIDS, Iranian Institute for Reduction of High Risk Behaviors, Tehran University of Medical Sciences, Tehran, Iran
6. Department of Electrical and Computer Engineering, Isfahan University of Medical Sciences, Isfahan, Iran