[1] Univ Tehran Med Sci, Sch Nursing & Midwifery, Pediat & Neonatal Intens Care Nursing Educ Dept, Tehran, Iran
[2] Univ Tehran Med Sci, Childrens Med Ctr, Dept Pediat, Pediat Crit Care Div, Tehran, Iran
[3] Univ Tehran Med Sci, Radiotherapy Oncol Dept, Palliat Med, Imam Khomeini Hosp Complex, Tehran, Iran
[4] Univ Tehran Med Sci, Sch Nursing & Midwifery, Iranian Sci Assoc Med Educ, Pediat & Neonatal Intens Care Nursing Educ Dept, Tehran, Iran