Deriving optimal value from each system. by Gray, J, Airoldi, M, Bevan, R, McCulloch, P

Factors affecting adenoma detection rate in a national flexible sigmoidoscopy screening programme: a retrospective analysis by Bevan, R, Blanks, RG, Nickerson, C, Saunders, BP, Stebbing, J, Tighe, R, Veitch, AM, Garrett, W, Rees, CJ