Earl, Helena M
Vallier, Anne-Laure
Dunn, Janet
Loi, Shrushma
Ogburn, Emma
McAdam, Karen
Hughes-Davies, Luke
Harnett, Adrian
Abraham, Jean
Wardley, Andrew
Cameron, David A
Miles, David
Gounaris, Ioannis
Plummer, Chris
Hiller, Louise
Article History
Received: 29 April 2016
Revised: 27 September 2016
Accepted: 3 October 2016
First Online: 22 November 2016
Competing interests
: HME reports grants from NIHR HTA during the conduct of the study. JD reports grants from NIHR HTA during the conduct of the study. SL reports grants from NIHR HTA during the conduct of the study. LH reports grants from NIHR HTA during the conduct of the study. AW reports personal fees from Roche, outside the submitted work. DC reports his institution was paid for consultancy work by DC from Roche, outside the submitted work. A-LV, EO, AH, IG, CP, DM, LH-D, KM and JH declare no conflicts of interest.