Toba A, Gaus S, Musba A, Ahmad M, Husain A, Datu M. A Comparative Analysis of Opioid-Based Anesthesia (OBA) and Opioid-Free Anesthesia (OFA) in Modified Radical Mastectomy: Effect on Hemodynamics Changes Intraoperative, Inflammatory Cytokine (IL-6) Levels, Pain Degree, and Postoperative Opioid Requirements. Arch Anesth & Crit Care. 2025;.