Donaldson, Cam, Baker, Rachel, Mason, Helen, Jones-Lee, M. W., Lancsar, Emily, Wildman, John, Research fellow, Bateman, Ian, Loomes, Graham, Professor of economics, Robinson, Angela, Sugden, R. C. (Robert Charles), Prades, Jose Luis Pinto, Ryan, Mandy, Shackley, Phil and Smith, Richard. (2011) The social value of a QALY : raising the bar or barring the raise? BMC Health Services Research, Vol.11 . article no.8. ISSN 1472-6963