Comparison of the Effective Dose 90 (ED90) and Clinical Outcomes of Fentanyl Versus Esketamine for Analgesia in Hysteroscopy: A Two-Part, Randomized, Double-Blind Trial

Du J, Li C, Huang M, Qin X

Drug Design, Development and Therapy 2026, 20:574516

Published Date: 13 January 2026