Describir: Fragility Index in Randomized Controlled Trials on Noninvasive Ventilation as a Weaning Strategy in Subjects With Acute Hypoxemic Respiratory Failure...Shan M, Pang X, Wang W et al. Noninvasive ventilation as a weaning strategy in subjects with acute hypoxemic respiratory failure. Respir Care 2020;65(10):1574-1584