Peykov, S
Berkel, S
Schoen, M
Weiss, K
Degenhardt, F
Strohmaier, J
Weiss, B
Proepper, C
Schratt, G
Nöthen, M M
Boeckers, T M
Rietschel, M
Rappold, G A
Article History
Received: 20 June 2014
Revised: 30 October 2014
Accepted: 12 November 2014
First Online: 6 January 2015
Competing interests
: The authors declare no conflict of interest.