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Comparison of Postoperative Analgesic Duration of Intrathecal Dexmedetomidine Versus Buprenorphine as Adjuvant to 0.5% Heavy Bupivacaine in Spinal Anesthesia for Orthopedic Surgeries. Med J South Punjab [Internet]. 2023 Dec. 30 [cited 2025 Apr. 26];4(2):70-6. Available from: https://www.medteach.org/index.php/mjsp/article/view/179