1. Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
2. Clinical Research Development Unit of Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran.
3. Department of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
4. Razi Clinical Research Development Center, Razi Hospital, Guilan University of Medical Sciences, Rasht, Iran.