Funding for this research was provided by:
French National Agency for Research and Technology (2011/0894)
Text and Data Mining valid from 2020-01-03
Received: 10 May 2019
Accepted: 24 December 2019
First Online: 3 January 2020
Ethics approval and consent to participate
: The study protocol was approved by the local ethics committee (Comité de Protection des Personnes Sud-Est VI, Clermont-Ferrand, number AU980). All participants provided informed written consent prior to the start of the study.
: Not applicable.
: The authors declare that they have no competing interests.