[1] Mashhad Univ Med Sci, Sch Nursing & Midwifery, Msc Midwifery, Mashhad, Razavi Khorasan, Iran
[2] Qom Univ Med Sci, Fac Nursing & Midwifery, Dept Midwifery, Qom, Iran
[3] Mashhad Univ Med Sci, Fac Nursing & Midwifery, Dept Midwifery, Nursing & Midwifery Care Res Ctr, Mashhad, Razavi Khorasan, Iran
[4] Isfahan Univ Med Sci, Fac Nursing & Midwifery, Dept Midwifery & Reprod Hlth, Nursing & Midwifery Care Res Ctr, Esfahan, Iran
[5] Mashhad Univ Med Sci, Fac Iranian & Complementary Med, Dept Chinese & Complementary Med, Mashhad, Razavi Khorasan, Iran
[6] Islamic Azad Univ, Zahedan Branch, Dept Midwifery, Zahedan, Iran