Brew, B K
Toelle, B G
Webb, K L
Almqvist, C
Marks, G B
,
Article History
Received: 3 January 2014
Revised: 10 June 2014
Accepted: 13 June 2014
First Online: 13 August 2014
Competing interests
: GB Marks sits on an advisory board for Novartis, who pay an honorarium on his behalf. The unit GB Marks works in has conducted the research funded by AstraZeneca. The remaining authors declare no conflict of interest.