Perner, F
Schnöder, T M
Ranjan, S
Wolleschak, D
Ebert, C
Pils, M C
Frey, S
Polanetzki, A
Fahldieck, C
Schönborn, U
Schraven, B
Isermann, B
Fischer, T
Heidel, F H
Article History
First Online: 5 August 2015
Competing interests
: FHH and DW received research funding from Novartis Inc. FHH is an advisory board member for Novartis Inc. The remaining authors declare no conflict of interest.