Sikorska, Natalia https://orcid.org/0000-0003-3333-697X
Zuber, Hélène https://orcid.org/0000-0002-2132-4536
Gobert, Anthony https://orcid.org/0000-0003-2626-8788
Lange, Heike https://orcid.org/0000-0002-8222-3448
Gagliardi, Dominique https://orcid.org/0000-0002-5871-7544
Article History
Received: 19 April 2017
Accepted: 3 November 2017
First Online: 18 December 2017
Competing interests
: The authors declare no competing financial interests.