1. Ischemic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
2. Anesthesia Techniques Department, College of Health and Medical Techniques, Al-Mustaqbal University, Babylon, Iraq
3. Laboratory Science Research Center, Golestan University of Medical Sciences, Gorgan, Iran
4. Department of Public Health, School of Health, Golestan University of Medical Sciences, Gorgan, Iran