Text and Data Mining valid from 2019-06-29
Received: 10 January 2019
Accepted: 16 June 2019
First Online: 29 June 2019
Compliance with Ethical Standards
: Alice Paris declares that she has no conflict of interest. Jean-Luc Gaillard declares that he has no conflict of interest. Jérôme Ledauphin declares that he has no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors
: A statement regarding informed consent is not applicable.