Naim, M. N. H. ., F. . khatun, M. . Fahad, A. H. Khan, N. . Mahmud, M. M. Kamal, M. S. . Islam, and D. . Banik. “Thoracic Segmental Spinal Anaesthesia for Laparoscopic Cholecystectomy: A Quasi- Experimental Study”. Bangladesh Journal of Pain, vol. 5, no. 2, Dec. 2025, pp. 47-57, doi:10.62848/bjpain.v5i2.1987.