Dong, W.-H., W.-Q. Yan, and Z. Chen. “Effect of Liberal or Conservative Oxygen Therapy on the Prognosis for Mechanically Ventilated Intensive Care Unit Patients: A Meta-Analysis”. São Paulo Medical Journal, vol. 140, no. 3, May 2022, pp. 467-73, https://periodicosapm.emnuvens.com.br/spmj/article/view/982.