Fazal Wadood, Madiha Zafar, Dur I Shahwar, Umar Iqbal, Shahid Adalat Chaudhry, Varda Balouch 2022. A Comparative Study on the Efficacy of Tramadol and Fentanyl Added To Low Dose Bupivacaine in Subarachnoid Block for Caesarean Section. Pakistan Journal of Medical & Health Sciences. 16, 06 (Sep. 2022), 1080. DOI:https://doi.org/10.53350/pjmhs221661080.