[1] Islamic Azad Univ, Dept Nursing, Isfahan Khorasgan Branch, Esfahan, Iran
[2] Univ Tehran Med Sci, Sch Nursing & Midwifery, Tehran, Iran
[3] Isfahan Univ Med Sci, Nursing & Midwifery Care Res Ctr, Esfahan, Iran
[4] Tabriz Univ Med Sci, Dept Pediat, Tabriz, Iran
[5] Minist Hlth & Med Educ, Dept Neonatal Hlth, Tehran, Iran
[6] Tabriz Univ Med Sci, Dept Community Med, Tabriz, Iran
[7] Columbia Univ, Morgan Stanley Childrens Hosp, Med Ctr, Pediat Palliat Care, New York, NY USA