1. Infertility and Health Reproductive Research Center, Health Research Institute, Babol, Islamic Republic of Iran
2. Department of Midwifery, School of Medicine, Babol University of Medical Sciences, Babol, Islamic Republic of Iran
3. Social Determinants of Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Islamic Republic of Iran
4. Geriatric Health, Department of Midwifery, Faculty of Medicine, Babol University of Medical Sciences, Babol, Islamic Republic of Iran
5. Department of Statistic and Epidemiology, Faculty of Medicine, Babol University of Medical Sciences, Babol, Islamic Republic of Iran