Winston, Jincy
Duerden, Laura
Mort, Matthew
Frayling, Ian M
Rogers, Mark T
Upadhyaya, Meena
Article History
Received: 6 August 2013
Revised: 20 February 2014
Accepted: 5 March 2014
First Online: 23 April 2014
Competing interests
: The authors declare no conflict of interest.