. S. . Srikiran, Krishna Chaithanya, Dr. R. Prabhavathi, Dr. Shiny Priyadarshini, and Dr. Angela Ishwarya Williams, “Effect of Ultrasound-Guided External Oblique Intercostal Fascial Plane Block on Hospital Length of Stay and Postoperative Analgesia in Geriatric Patients Undergoing Laparoscopic Cholecystectomy”, J Popl Ther Clin Pharmacol, vol. 33, no. 2, pp. 1060–1070, Aug. 2026, doi: 10.69980/m7mw1323.