Bug, G
Burchert, A
Wagner, E-M
Kröger, N
Berg, T
Güller, S
Metzelder, S K
Wolf, A
Hünecke, S
Bader, P
Schetelig, J
Serve, H
Ottmann, O G
Article History
First Online: 28 July 2017
Competing interests
: GB and OGO: honoraria for advisory board participation from Novartis; GB and NK: research support from Novartis; GB: travel grants from Novartis; the remaining authors declare no conflict of interest.