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Article History

Received: 21 April 2020

Accepted: 30 April 2020

First Online: 2 June 2020

Ethics approval and consent to participate

: In accordance with French law and the ethical standards of our hospitals’ institutional review board (Committee for the Protection of Human Subjects), informed consent was not obtained because this observational study did not modify existing diagnostic or therapeutic strategies. However, patients and/or their relatives were informed about the anonymous data collection and were told that they could decline inclusion. This database is registered at the National Commission for Informatics and Liberties (CNIL registration no. 1950673).

: Not applicable

: The authors declare that they have no competing interests.