ROX index performance to predict high-flow nasal oxygen outcome in Covid-19 related hypoxemic acute respiratory failure. - Girault C; Bubenheim M; Boyer D; Declercq PL; Schnell G; Gouin P; Michot JB; Carpentier D; Grangé S; Béduneau G; Tamion F (Annals of intensive care, 2024)