Gastroenterology services in the UK. The burden of disease, and the organisation and delivery of services for gastrointestinal and liver disorders: a review of the evidence
J GWilliams, S ERoberts, M FAli, W YCheung, D RCohen, GDemery, AEdwards, MGreer, M DHellier, H AHutchings, BIp, M FLongo, I TRussell, H ASnooks, J CWilliams
