title: The authors reply.
authors.affiliation: Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy; Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy, Vita-Salute San Raffaele University, Milan, Italy; Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy; Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy, Vita-Salute San Raffaele University, Milan, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: Cabrini
authors.forename: Giovanni
authors.initials: G
authors.lastname: Landoni
authors.forename: Sergio
authors.initials: S
authors.lastname: Colombo
authors.forename: Alberto
authors.initials: A
authors.lastname: Zangrillo
mesh_terms: D006801:Humans; D063087:Noninvasive Ventilation; D012128:Respiratory Distress Syndrome; D012131:Respiratory Insufficiency; D015996:Survival Rate