Received: 29 January 2020
Accepted: 5 June 2020
First Online: 15 June 2020
Ethics approval and consent to participate
: The ethics committee of the French Intensive Care Society approved the study (#CE SRLF16-09). In accordance with French law on retrospective studies of anonymized data, informed consent was not required.
: Not applicable to this retrospective study of anonymized data.
: The authors declare that they have no competing interests.