Funding for this research was provided by:
Ligue Contre le Cancer
Received: 11 June 2020
Accepted: 16 September 2020
First Online: 31 October 2020
Ethics approval and consent to participate
: The study was approved by the French National Commission for Data Protection and Privacy, and all participants gave written informed consent for data collection and storage, as well as individual follow-up.
: Not applicable.
: The authors declare that they have no competing interests.