Received: 2 December 2020
Accepted: 8 March 2021
First Online: 22 March 2021
: The study was approved by the regional <i>ethics committee of South-East France</i> 6 (Comité de Protection des Personnes Sud-Est 6, reference # N°2015/CE 59 - IRB00008526). All methods were performed in accordance with the relevant guidelines and regulations. Patients were informed of the study as requested in the French guidelines. Informed consent is obtained from all participants and in case of participants who are dead now informed consent is obtained from their legal guardian.
: Not applicable
: The authors have no financial conflicts of interest related to this study.