S. Shankar, B. Gupta, M. Singh, A. Pandey, V. Dwivedi, and S. Sachan, “Intraperitoneal bupivacaine alone or with dexmedetomidine for post-operative analgesia following laparoscopic cholecystectomy: A prospective randomized comparative study”, apic, vol. 26, no. 3, pp. 347-351, Apr. 2022.