Iqbal, F. et al. 2021. The COMPARISON BETWEEN HYPERBARIC BUPIVACAINE PLUS FENTANYL AND HYPERBARIC BUPIVACAINE ALONE IN SPINAL ANESTHESIA FOR CAESAREAN SECTION. Pakistan Armed Forces Medical Journal. 71, 3 (Jun. 2021), 1033–36. DOI:https://doi.org/10.51253/pafmj.v71i3.3618.