“A STUDY ON EFFICACY OF VARIABLE CONCENTRATIONS OF BUPIVACAINE IN ULTRASOUND-GUIDED ANTERIOR SCIATIC NERVE BLOCK FOR PATIENTS UNDERGOING LOWER LIMB SURGERIES” (2026) Asian Journal of Medical Research and Health Sciences, 4(2), pp. 970–976. Available at: https://www.ajmrhs.com/journal/article/view/532 (Accessed: 1 July 2026).