Zirak,N , , Milani,S , and Eftekharzadeh,S . "The effect of adding "epinephrine" to the combination of "intrathecal Lidocaine- fentanyl " on nausea and vomiting after the surgery of elective cesarean section", The Iranian Journal of Obstetrics, Gynecology and Infertility, 18, 144, 2015, 1-8. doi: 10.22038/ijogi.2015.4358