Received: 4 February 2020
Accepted: 3 July 2020
First Online: 14 July 2020
: The study protocol was approved by the IRB of the Nantes University Hospital and was conducted in compliance with the Helsinki Declaration and to local legislation.
: All patient information was anonymized at source and unique ID codes were used to identify cases, as requested by the IRB of the Nantes University Hospital.
: The authors declare that they have no competing interests.