Shafiul Alam Shaheen, Md, et al. “Effects on Heamodynamics and Postoperative Analgesic Requirement After Major Abdominal Surgeries: Comparison Between Continuous Epidural Infusion of 0.2% Ropivacaine and 0.125% Bupivacaine”. BIRDEM Medical Journal, vol. 14, no. 1, Jan. 2024, pp. 23-30, doi:10.3329/birdem.v14i1.71015.