Thoms, Matthias http://orcid.org/0000-0001-8084-6097
Mitterer, Valentin
Kater, Lukas
Falquet, Laurent
Beckmann, Roland http://orcid.org/0000-0003-4291-3898
Kressler, Dieter http://orcid.org/0000-0003-4855-3563
Hurt, Ed http://orcid.org/0000-0002-4535-8255
Article History
Received: 26 April 2018
Accepted: 17 September 2018
First Online: 5 October 2018
Competing interests
: The authors declare no competing interests.