PRAVEEN KUMAR, BHUPENDRA SINGH, HARSHA D, & VIKRAM SINGH RATHORE. (2024). A COMPARISON OF EFFICACY OF EPIDURAL BUTORPHANOL AND FENTANYL FOR POST-OPERATIVE PAIN ANALGESIA IN LOWER ABDOMINAL AND LOWER LIMB SURGERIES UNDER EPIDURAL ANESTHESIA: A PROSPECTIVE RANDOMIZED DOUBLE-BLINDED STUDY. Asian Journal of Pharmaceutical and Clinical Research, 17(10), 38–42. https://doi.org/10.22159/ajpcr.2024v17i10.52123