1. Department of Biostatistics, School of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran;
2. Medical Informatics Department, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran;
3. Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran;
4. Clinical Research Development Unit, Imam Reza Hospital, University of Medical Sciences, Mashhad, Iran