Gatzka, M
Tasdogan, A
Hainzl, A
Allies, G
Maity, P
Wilms, C
Wlaschek, M
Scharffetter-Kochanek, K
Article History
Received: 8 July 2014
Revised: 2 December 2014
Accepted: 5 December 2014
First Online: 23 January 2015
Competing interests
: The authors declare no conflicts of interest.