Awake prone positioning in acute hypoxaemic respiratory failure.

"Conflicts of interest: M. Ibarra-Estrada, A. Kharat, D. Cosgrave and C. Guerin report no conflicts of interest. B.A. McNicholas reports consulting fees received personally from Teleflex. Y. Perez reports grants to institution and personal support for attending medical congress from Fisher & Paykel. J. Li reports grants to institution from Fisher & Paykel, Aerogen, Rice Foundation and American Association for Respiratory Care; personal honoraria for lectures from Fisher & Paykel, Aerogen, Heyer lts, and American Association for Respiratory Care. I. Pavlov reports grants to institution from Open AI inc and Fisher & Paykel. D.L. Vines reports grants to institution from Teleflex Medical and Rice Foundation; personal honoraria from Theravance Biopharma; unpaid role as President, National board for Respiratory Care. O. Roca reports grants to institution from Hamilton Medical AG and Fisher & Paykel; personal consulting fees from Aerogen, and honoraria received from Hamilton Medical AG, Fisher & Paykel, Aerogen and Ambu Ltd; unpaid role as chair of Acute Respiratory Failure group of Spanish Society of Intensive Care Medicine; non-funded research support from Timpel Ltd. S. Ehrmann reports grants to institution from Aerogen Ltd and Fisher & Paykel; personal consulting fees from Aerogen Ltd; personal honoraria and support for attending meetings from Aerogen Ltd and Fisher & Paykel; participation on Data Safety Monitoring Board for Aerogen Ltd; receipt of equipment/materials from Aerogen Ltd and Fisher & Paykel. J.G. Laffey reports funding to institution from Science Foundation Ireland; personal consulting fees from Baxter Healthcare; unpaid participation in Data Safety Monitoring Board (investigator trials); unpaid role as chair of Translational Biology Section of European Society of Intensive Care Medicine."