Hassan, S., Thang, P., Muhd Shukeri, W.F. and Ismet, S. 2023. Comparison of analgesic efficacy and safety of bupivacaine plus ketamine versus bupivacaine alone in rectus sheath block for midline laparotomy. Anaesthesia, Pain & Intensive Care. 27, 2 (Apr. 2023), 154-160. DOI:https://doi.org/10.35975/apic.v27i2.2189.