Critical care (London, England), 25(1). Springer Science + Business Media Critical Care, Vol 25, Iss 1, Pp 1-11 (2021) Albani, F, Fusina, F, Ciabatti, G, Pisani, L, Lippolis, V, Franceschetti, M E, Giovannini, A, di Mussi, R, Murgolo, F, Rosano, A, Grasso, S & Natalini, G 2021, ' Flow Index accurately identifies breaths with low or high inspiratory effort during pressure support ventilation ', Critical care (London, England), vol. 25, no. 1, pp. 427 . https://doi.org/10.1186/s13054-021-03855-4 Critical Care