Browne, A J
Göbel, A
Thiele, S
Hofbauer, L C
Rauner, M
Rachner, T D
Article History
Received: 6 October 2015
Revised: 5 January 2016
Accepted: 22 January 2016
First Online: 25 February 2016
Competing interests
: The authors Lorenz C Hofbauer and Tilman D Rachner have received honoraria, unrestricted educational grants and research funding from the following companies: Amgen, Novartis and Merck. The remaining authors declare no conflict of interest.