Document Type : Original Article
Authors
1 Instructor, Department of Midwifery, School of Nursing & Midwifery, Islamic Azad University of Karaj, Karaj, Iran.
2 M.Sc. of Midwifery, School of Nursing & Midwifery, Tehran University of Medical Sciences, Tehtan, Iran.
3 Instructor, Department of Midwifery, School of Nursing & Midwifery, Tehran University of Medical Sciences, Tehtan, Iran.
4 Associate professor, Department of Biostatistics, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran.
Abstract
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