Lear, J T
Corner, C
Dziewulski, P
Fife, K
Ross, G L
Varma, S
Harwood, C A
Article History
Received: 16 August 2013
Revised: 24 February 2014
Accepted: 2 April 2014
First Online: 11 September 2014
Competing interests
: JTL, CC, KF, SV and CAH have sat on advisory boards and received honoraria from Roche Products Ltd. PD and GLR have no conflict of interest to declare.