1. Department of Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
2. Department of Gynecology & Obstetric, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3. Department of Clinical Microbiology, School of Medicine, Shahid Beheshti University of Medical sciences, Tehran, Iran
4. School of Medicine, Islamic Azad University, Tonekabon Branch, Tonekabon, Iran