Mielke, S
Lutz, M
Schmidhuber, J
Kapp, M
Ditz, D
Ammer, J
Einsele, H
Grigoleit, G U
Holler, E
Wolff, D
Article History
Received: 27 February 2014
Revised: 13 June 2014
Accepted: 17 June 2014
First Online: 4 August 2014
Competing interests
: SM received honoraria and travel grants from Novartis, Germany. DW and EH received research funding from Novartis, Germany. ML, JS, MK, DD, JA, HE and GUG declare no conflict of interest.