Neto, Carlos, et al. “Effect of Low-Flow Versus Conventional-Flow Inhalational Anaesthesia on Pulmonary and Oxygenation Outcomes in Adult Surgical Patients: A Systematic Review and Meta-Analysis of Randomised Controlled Trials”. Journal of the Portuguese Society of Anesthesiology, vol. 35, no. 3, Oct. 2026, pp. 74-83, doi:10.25751/rspa.49390.