1. Cotton, P. B. (1977). ERCP. Gut, 18, 316-341.
2. Diagnosis of cholestasis;Cotton, P.B.; Stern, R.B.,1977
3. Cholangiography in the jaundiced patient;Elias, E.;Gut,1976
4. Comparison of ultrasound and computer-assisted tomography in pancreatic diagnosis;Husband, J.E.; Meire, H.B.; Kreel, L.;British Journal Radiology,1977
5. Bile leakage following percutaneous transhepatic cholangiography with the Chiba needle;Juler, G.L.; Conroy, R.M.; Fuelleman, R.W.;Archives of Surgery; Editorial Ultrasonography of the pancreas,1977