Faucheron, J.-L.
Sage, P.-Y.
Trilling, B.
Article History
Received: 25 December 2017
Accepted: 2 January 2018
First Online: 24 January 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study, informed consent is not required.