1. Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2. M.Sc. In Midwifery, School of Nursing and Midwifery, Mashhad University of Medical Sciences, Mashhad, Iran
3. Department of Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4. Azad Islamic University, Damghan, Iran
5. Department of Anatomy and Physiology, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Victoria, Australia