Funding for this research was provided by:
Ministère de la Transition écologique et Solidaire
Text and Data Mining valid from 2020-02-17
Received: 13 August 2019
Accepted: 13 January 2020
First Online: 17 February 2020
Ethics approval and consent to participate
: Not applicable.
: All authors consent for publication.
: The authors declare that they have no competing interests.