Ugur, F., Esmaoglu, A., Gunes, T., Gulcu, N., & Boyaci, A. (2021). The Effects of Fentanyl or Morphine Added to Intrathecal Bupivacaine in Spinal Anesthesia for Cesarean Section . Annals of Medical Research, 14(2), 0085–0089. Retrieved from http://annalsmedres.org/index.php/aomr/article/view/3162