“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. doi:10.65605/a-jmrhs.2026.v04.i02.pp970-976.