Hayk Suresh Negin. “Hyperbaric Bupivacaine AsAdjuvant in Spinal Anesthesia”. Open Journal of Physicians and Surgeons 3, no. 01 (April 30, 2022): 38–45. Accessed June 15, 2026. https://www.ojps.medscientist.org/index.php/Journal/article/view/44.