Ing-Marie Claesson Jan Brynhildsen Marie Cedergren Annika Jeppsson Adam Sydsjö Ann Josefsson

khodayar oshvandi mother and child care research center hamadan university of medical sciences, hamadan, ir iran malihe adineh fathabadi department of nursing, mashhad university of medical sciences, mashhad, ir iran gholam hossian falahi nia mother and child care research center hamadan university of medical sciences, hamadan, ir iran; corresponding author: gholam hossian falahi nia, research center for maternal and child care, hamadan university of medical sciences, hamadan, ir iran. tel: +98-9188117729, fax: +98-8118380447, e-mail: hossein mahjub school of public health, hamadan university of medical sciences, hamadan, ir iran mohsen adib-hajbaghery trauma nursing research center, kashan university of medical sciences, kashan, ir iran