Kolodziej, Stephan
Kuvardina, Olga N.
Oellerich, Thomas
Herglotz, Julia
Backert, Ingo
Kohrs, Nicole
Buscató, Estel.la
Wittmann, Sandra K.
Salinas-Riester, Gabriela
Bonig, Halvard
Karas, Michael
Serve, Hubert
Proschak, Ewgenij
Lausen, Jörn
Article History
Received: 11 March 2014
Accepted: 28 April 2014
First Online: 29 May 2014
Competing interests
: The authors declare no competing financial interests.