Kratz, C P
Franke, L
Peters, H
Kohlschmidt, N
Kazmierczak, B
Finckh, U
Bier, A
Eichhorn, B
Blank, C
Kraus, C
Kohlhase, J
Pauli, S
Wildhardt, G
Kutsche, K
Auber, B
Christmann, A
Bachmann, N
Mitter, D
Cremer, F W
Mayer, K
Daumer-Haas, C
Nevinny-Stickel-Hinzpeter, C
Oeffner, F
Schlüter, G
Gencik, M
Überlacker, B
Lissewski, C
Schanze, I
Greene, M H
Spix, C
Zenker, M
Article History
Received: 24 October 2014
Revised: 15 January 2015
Accepted: 27 January 2015
First Online: 5 March 2015
Competing interests
: The authors declare no conflict of interest.