De Backer, Daniel http://orcid.org/0000-0001-9841-5762
Vincent, Jean-Louis
Article History
Received: 18 October 2017
Accepted: 18 January 2018
First Online: 23 February 2018
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.