Infertility and Reproductive Health Research Center. Health Research Institute, Babol University of Medical Sciences, Babol, Iran. Department of Clinical Biochemistry, School of Medicine, Babol University of Medical Sciences, Babol, Iran. Pharmaceutical Sciences Research Center and School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Community Oral Health Department, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Department of Biostatistics, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Student Research Committee, Babol University of Medical Sciences, Babol, Iran. Infertility and Reproductive Health Research Center. Health Research Institute, Babol University of Medical Sciences, Babol, Iran. parvaneh_mirabi@yahoo.com.