1. Student Research Committee, Department of Midwifery, School of Nursing and Midwifery, Mashhad University of Medical Sciences, Ebne-Sina Street, Mashhad 9137913199, Iran
2. Maternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz 7194634786, Iran
3. Research Center for Patient Safety, Department of Midwifery, School of Nursing and Midwifery, Mashhad University of Medical Sciences, Ebne-Sina Street, Mashhad 9137913199, Iran
4. Health Sciences Research Center, Department of Biostatistics and Epidemiology, School of Health, Mashhad University of Medical Sciences, Daneshgah Avenue, Mashhad 9137673119, Iran
5. Medical Ethics and Law Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1516745811, Iran
6. Department of Sociology and Anthropology, University of Maryland, Baltimore County, Baltimore, MD 21250, USA