Non-invasive ventilatory support and high-flow nasal oxygen as first-line treatment of acute hypoxemic respiratory failure and ARDS. - Grieco DL; Maggiore SM; Roca O; Spinelli E; Patel BK; Thille AW; Barbas CSV; de Acilu MG; Cutuli SL; Bongiovanni F; Amato M; Frat JP; et al. (Intensive care medicine, 2021)