Text and Data Mining valid from 2020-02-12
Received: 2 October 2019
Accepted: 7 February 2020
First Online: 12 February 2020
Ethics approval and consent to participate
: Approval for the study was obtained from the relevant ethics committee (ID 0270 of 12 December 2012) and the French Data Protection Authority (CNIL, ID 902267 of 12 December 2012). Written consents were obtained from each participant.
: Not applicable.
: The authors declare that they have no competing interests.