Elmelund, M
Oturai, P S
Toson, B
Biering-Sørensen, F
Article History
Received: 7 September 2015
Revised: 14 December 2015
Accepted: 15 December 2015
First Online: 12 January 2016
Competing interests
: Marlene Elmelund has received personal fees from Astellas Pharma, outside the submitted work. The other authors declare no conflict of interest.
Free to read: This content has been made available to all.