A STUDY ON EFFICACY OF VARIABLE CONCENTRATIONS OF BUPIVACAINE IN ULTRASOUND-GUIDED ANTERIOR SCIATIC NERVE BLOCK FOR PATIENTS UNDERGOING LOWER LIMB SURGERIES. Asian Journal of Medical Research and Health Sciences, [S. l.], v. 4, n. 2, p. 970–976, 2026. Disponível em: https://www.ajmrhs.com/journal/article/view/532. Acesso em: 1 jul. 2026.