Pauly, Christian
Rasche, Bertold
Koepernik, Klaus
Liebmann, Marcus
Pratzer, Marco
Richter, Manuel
Kellner, Jens
Eschbach, Markus
Kaufmann, Bernhard
Plucinski, Lukasz
Schneider, Claus M.
Ruck, Michael
van den Brink, Jeroen
Morgenstern, Markus
Article History
Received: 12 October 2014
Accepted: 26 January 2015
First Online: 2 March 2015
Competing interests
: The authors declare no competing financial interests.