Document Type : Original Article
Authors
1 General Practitioner, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
2 Professor, Department of Obstetrics and Gynecology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
3 Assisstant Professor, Department of Community Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Abstract
Keywords