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Surgery|June 1, 1982
Duodenoscopic sphincterotomy for removal of bile duct stones in patients with gallbladdersP B Cotton, A G VallonThe British Journal of Surgery|June 1, 1981
British experience with duodenoscopic sphincterotomy for removal of bile duct stonesP B Cotton, A G VallonGastroenterology|April 1, 1990
Follow-up 6 to 11 years after duodenoscopic sphincterotomy for stones in patients with prior cholecystectomyR H Hawes, P B Cotton, A G VallonAge and Ageing|February 1, 1980
Benign oesophageal stricture in the elderly--use of cimetidine and fibre-optic dilatationJ R Croker, A G Vallon, P B CottonThe British Journal of Surgery|March 1, 1979
Grey-scale ultrasonography and endoscopic pancreatography after pancreatic traumaA G Vallon, W R Lees, P B CottonGut|January 1, 1979
Grey-scale ultrasonography in cholestatic jaundiceA G Vallon, W R Lees, P B CottonBritish Medical Journal (Clinical Research Ed.)|August 22, 1981
Non-operative removal of bile duct stones by duodenoscopic sphincterotomy in the elderlyA S Mee, A G Vallon, J R Croker, et al.British Medical Journal (Clinical Research Ed.)|September 21, 1985
Small bowel biopsy for malabsorption: comparison of the diagnostic adequacy of endoscopic forceps and capsule biopsy specimensA S Mee, M Burke, A G Vallon, et al.British Medical Journal|January 20, 1979
Prospective study of ultrasonography in chronic pancreatic diseaseW R Lees, A G Vallon, M E Denyer, et al.Radiology|February 1, 1980
Gray-scale ultrasonography and endoscopic pancreatography in pancreatic diagnosisP B Cotton, W R Lees, A G Vallon, et al.Pageof 17