Impact of opioid-free anaesthesia on postoperative opioid consumption: a systematic review and meta-analysis. UCC Student Medical Journal, [S. l.], v. 5, p. 111, 2026. DOI: 10.33178/SMJ.2025.1.37. Disponível em: https://journals.ucc.ie/index.php/smj/article/view/4637. Acesso em: 3 feb. 2026.