Kiefer, Markus http://orcid.org/0000-0001-5189-4364
Neff, Ute
Schmid, Markus M.
Spitzer, Manfred
Connemann, Bernhard J.
Schönfeldt-Lecuona, Carlos
Article History
Received: 9 May 2017
Accepted: 26 September 2017
First Online: 13 October 2017
Competing Interests
: The authors declare that they have no competing interests.