EFFICACY OF BILATERAL ULTRASOUND GUIDED ERECTOR SPINAE PLANE BLOCK ON POSTOPERATIVE PAIN IN LUMBAR SPINE SURGERIES; A DOUBLE-BLIND RANDOMISED PLACEBO CONTROL TRIAL . Cuestiones de Fisioterapia, [S. l.], v. 54, n. 2, p. 1026–1041, 2025. Disponível em: https://cuestionesdefisioterapia.com/index.php/es/article/view/815.. Acesso em: 18 sep. 2025.