Document Type : Original Article
Authors
1 M.Sc. Student of Midwifery, Faculty of Nursing and Midwifery, Mashhad University of Medical Sciences, Mashhad, Iran.
2 Lecturer, Department of Midwifery, Faculty of Midwifery, Mashhad University of Medical science, Mashhad, Iran.
3 Associate Professor, Department of Biostatistics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Abstract
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