PERIOPERATIVE ANALGESIC EFFICACY OF THE ERECTOR SPINAE PLANE BLOCK WITHIN A MULTIMODAL ANESTHESIA PROTOCOL FOR OPEN THORACOLUMBAR SPINAL FIXATION SURGERY. Macedonian J Anaesth [Internet]. 2026 Jul. 4 [cited 2026 Sep. 16];10(2):25-36. Available from: https://new.mja.mk/index.php/journal/article/view/127