Moallemy, A., Jarineshin, H., Baghae, A. A., Fekrat, F., Shuruei, M. H., & Ozhand, M. (2025). A comparative study of the effects of adding intrathecal morphine and pethidine to bupivacaine in spinal anesthesia during cesarean section: A randomized clinical trial. Ethiopian Medical Journal, 63(1), 323–328. https://doi.org/10.4314/emj.v63i1.5