Apnoeic oxygenation via high‑flow nasal cannula oxygen combined with non‑invasive ventilation preoxygenation for intubation in hypoxaemic patients in the intensive care unit: the single‑centre, blinded, randomized controlled OPTINIV trial / Mehdi Girard ; sous la direction du Dr De Jong Audrey / Montpellier : Université de Montpellier , 2017