Bruce, Toby J.A.
Aradottir, Gudbjorg I.
Smart, Lesley E.
Martin, Janet L.
Caulfield, John C.
Doherty, Angela
Sparks, Caroline A.
Woodcock, Christine M.
Birkett, Michael A.
Napier, Johnathan A.
Jones, Huw D.
Pickett, John A.
Article History
Received: 2 January 2015
Accepted: 30 April 2015
First Online: 25 June 2015
Competing interests
: The authors declare no competing financial interests.