Kammertoens, Thomas
Friese, Christian
Arina, Ainhoa
Idel, Christian
Briesemeister, Dana
Rothe, Michael
Ivanov, Andranik
Szymborska, Anna
Patone, Giannino
Kunz, Severine
Sommermeyer, Daniel
Engels, Boris
Leisegang, Matthias
Textor, Ana
Fehling, Hans Joerg
Fruttiger, Marcus
Lohoff, Michael
Herrmann, Andreas
Yu, Hua
Weichselbaum, Ralph
Uckert, Wolfgang
Hübner, Norbert
Gerhardt, Holger
Beule, Dieter
Schreiber, Hans
Blankenstein, Thomas
Article History
Received: 2 February 2016
Accepted: 30 March 2017
First Online: 26 April 2017
Competing interests
: The authors declare no competing financial interests.