Article History
Received: 28 June 2018
Accepted: 4 July 2018
First Online: 14 July 2018
Compliance with ethical standards
:
: None.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the principles of the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: In accordance with European regulations, French observational studies without any additional therapy or monitoring procedures do not need the approval of an ethics committee. Nonetheless, we sought approval to collect data for our study from the National Committee for Data Privacy, the National Commission on Informatics and Liberty (CNIL), with registration no. 2,080,317 v 0.