Safety of inter-facility transport strategies for patients referred for severe acute respiratory distress syndrome.

"Declarations Ethics approval and consent to participateAll study procedures were performed as per French regulatory institutions and guidelines and in accordance with the declaration of Helsinki. The study was approved by the Hospices Civils de Lyon ethics committee (CSE _HCL, IRB 00013204, reference number 22_796) prior to data collection. Informed consent was obtained by requesting the non-opposition of participants to the retrospective use of their data, systematically sought by way of an information letter detailing the study protocol sent to them and/or their next-of-kin. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding None."