1. School of Medicine, Babol University of Medical Sciences, Babol, Iran
2. Department of Biostatistics and Epidemiology, School of Public Health, Babol University of Medical Sciences, Babol, Iran
3. Department of Anesthesiology, Babol University of Medical Sciences, Babol, Iran
4. Department of Cardiology, Babol University of Medical Sciences, Babol, Iran
5. Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran