[1] Univ Tehran Med Sci, Nursing & Midwifery Care Res Ctr, Sch Nursing & Midwifery, Tehran, Iran
[2] Zurich Univ Appl Sci, Res Inst Midwifery Sci, Winterthur, Switzerland
[3] Kurdistan Univ Med Sci, Social Determinants Hlth Res Ctr, Res Inst Hlth Dev, Sanandaj, Iran
[4] Iran Univ Med Sci, Sch Publ Hlth, Tehran, Iran
[5] Univ Illinois, Coll Nursing, Dept Women Children & Family Hlth Sci, Chicago, IL 60612 USA
[6] Urmia Univ Med Sci, Reprod Hlth Res Ctr, Clin Res Inst, Orumiyeh, Iran