Herzner, Anna-Maria
Hagmann, Cristina Amparo
Goldeck, Marion
Wolter, Steven
Kübler, Kirsten
Wittmann, Sabine
Gramberg, Thomas
Andreeva, Liudmila
Hopfner, Karl-Peter
Mertens, Christina
Zillinger, Thomas
Jin, Tengchuan
Xiao, Tsan Sam http://orcid.org/0000-0001-9688-475X
Bartok, Eva
Coch, Christoph
Ackermann, Damian
Hornung, Veit
Ludwig, Janos
Barchet, Winfried
Hartmann, Gunther
Schlee, Martin http://orcid.org/0000-0003-3671-7639
Article History
Received: 24 December 2014
Accepted: 6 August 2015
First Online: 7 September 2015
Competing interests
: The authors declare no competing financial interests.