Hendriks, R J
van Oort, I M
Schalken, J A
Article History
Received: 8 August 2016
Revised: 26 September 2016
Accepted: 24 October 2016
First Online: 6 December 2016
Competing interests
: JAS and IMvO have consultancy with honoraria for Astellas, Janssen and Sanofi. The remaining author declares no conflict of interest.