Linder, Katarzyna
Willmann, Caroline
Kantartzis, Konstantinos http://orcid.org/0000-0002-0584-1138
Machann, Jürgen
Schick, Fritz
Graf, Marjo
Kümmerle, Sabine
Häring, Hans-Ulrich
Fritsche, Andreas
Stefan, Norbert
Wagner, Róbert http://orcid.org/0000-0002-6120-0191
Article History
Received: 8 August 2018
Accepted: 14 December 2018
First Online: 4 February 2019
Competing Interests
: The authors declare no competing interests.