1. Mother and Child Welfare Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran;
2. MSc of Midwifery, Department of Reproductive Health, Nursing and Midwifery Faculty, Shahid Beheshti University of Medical Sciences, Tehran, Iran;
3. Department of Biostatistics, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran;
4. Department of Community Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia