Nagel, P D
Stenzinger, A
Feld, F M
Herrmann, M D
Brüderlein, S
Barth, T F E
Marienfeld, R
Endris, V
Weichert, W
Debatin, K-M
Westhoff, M-A
Lessel, D
Möller, P
Lennerz, J K
Article History
First Online: 22 August 2014
Competing interests
: The authors declare no conflict of interest.