[1] Tabriz Univ Med Sci, Fac Nursing & Midwifery, Dept Midwifery, Tabriz, Iran
[2] Univ Ulster, Sch Hlth Sci, Inst Nursing & Hlth Res, London, England
[3] Tabriz Univ Med Sci, Social Determinants Hlth Res Ctr, Tabriz, Iran
[4] Tabriz Univ Med Sci, Fac Nursing & Midwifery, Student Res Comm, Tabriz, Iran