The role of fiberoptic endoscopy in the diagnosis and management of duodenal neoplasms Arnold WaldFrancis D. Milligan Original Articles Pages: 499 - 505
Comparative study of secretin and Lundh tests Klaus GyrNaurang M. AgrawalRobert G. Font Original Articles Pages: 506 - 512
Variability of serum gastrin levels in Zollinger-Ellison syndrome Kevin J. IveyJ. Hansky Original Articles Pages: 513 - 517
Thymus-derived lymphocytes in type B acute viral hepatitis and healthy carriers of hepatitis B surface antigen (HBsAg) Robert C. WicksPeter F. KohlerJohn W. Singleton Original Articles Pages: 518 - 522
Frontiers in inflammatory bowel disease Roy G. ShorterDavid A. E. ShephardD. W. Watson Special Article Pages: 540 - 571
Introduction to a new section of gastrointestinal roentgenology Richard L. WechslerWylie J. Dodds Editorial Pages: 572 - 572
Bleeding Meckel's diverticulum diagnosed by arteriography and radioisotope imaging David EisenbergCharles E. Sherwood Forums in Gastrointestinal Roentgenology Pages: 573 - 576
Primary adenocarcinoma of the esophagus arising in a columnar-lined esophagus Alfred E. StillmanJeffrey I. Selwyn Case Report Pages: 577 - 582
Silent pancreatic pseudocyst James M. FalkoHagop S. MekhjianFred B. Thomas Case Report Pages: 583 - 587
Syphilitic gastropathy Terence N. ReismanF. Lynn LeverettMartin H. Kalser Case Report Pages: 588 - 593
Postvagotomy insulin infusion test William H. HallJ. H. BaronJ. Spencer Letters to the Editor Pages: 599 - 601