This paper was written during a PhD studentship funded by theUK's Economic and Social Research Council(ESRC ES/J500203/1) andGE Healthcare Ltd.and was a collaboration betweenThe University of Warwick, UKand theUniversity of the Witwatersrand, South Africa. ...
South Warwickshire NHS Foundation Trust, Warwick Hospital, Lakin Road, Warwick, CV34 5BW, UK Jeremy Shearman & Emily Archer Southend University Hospital NHS Foundation Trust, Southend Hospital, Prittlewell Chase, SS0 0RY, Westcliff-on-Sea, UK Gary Bray Southport & Ormskirk Hospital NHS Trust,...