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2. Prospective comparison of three noninvasive tests for pancreatic disease;Foster, P.N.; Mitchell, C.J.; Robertson, D.R.C.; Hamilton, I.; Irving, H.; Kelleher, J.,1984
3. Biliary dilatation: defining the level and cause by real-time ultrasound;Laing, F.C.; Brooke-Jeffrey, R.; Wing, V.W.; Nyberg, D.A.;Radiology,1986
4. Bile duct obstruction: radiologic evaluation of level, cause and tumour resectability;Gibson, R.N.; Yeung, E.; Thompson, J.N.; Carr, D.H.; Hemingway, A.P.; Bradpiece, H.A.;Radiology,1986
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