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Halvadia, S. H.; Halvadia, H. B.; Joshi, R. M.; Upadhyaya, D. P. Low Dose Bupivacaine - Fentanyl Vs. Conventional Dose Of Bupivacaine In Spinal Anesthesia For Orthopaedic Procedures In Elderly Patients: Low Dose Bupivacaine - Fentanyl Vs. Conventional Dose Of Bupivacaine. Natl J Integr Res Med 2013, 4, 50-56.