Das, P. K., K. S. Gowthami, and J. C. Tentu. “Incidence of Chronic Postoperative Surgical Pain After Laparoscopic Cholecystectomy: A Comparison Between Dexmedetomidine-Fentanyl and Propofol-Fentanyl Based Total Intravenous Anesthesia”. International Journal of Health Sciences, vol. 6, no. S4, June 2022, pp. 2993-01, doi:10.53730/ijhs.v6nS4.9705.