1. The adverse effect of chocolate on lower esophageal sphincter pressure

   • Lewis E. Wright
   • Donald O. Castell

   Original Articles Pages: 703 - 707

2. Duodenal microflora

   • John D. Lloyd-Still
   • Harry Shwachman

   Original Articles Pages: 708 - 715

3. Lower esophageal sphincter responses to enteric hormones in two patients with Zollinger-Ellison syndrome

   • W. C. Wu
   • W. J. Hogan
   • R. K. Kalkhoff

   Original Articles Pages: 716 - 720

4. A controlled trial of azathioprine in Crohn's disease

   • James L. Rosenberg
   • Bernard Levin
   • Joseph B. Kirsner

   Original Articles Pages: 721 - 726

5. Layering of contrast material in oral cholecystography

   • David Bryk
   • Ebrahim Moadel

   Original Articles Pages: 727 - 734

6. Pigment vs cholesterol cholelithiasis: Clinical and epidemiological aspects

   • Bruce W. Trotman
   • Roger D. Soloway

   Original Articles Pages: 735 - 740

7. Prothrombin complex concentrate: Use in controlling the hemorrhagic diathesis of chronic liver disease

   • Rodger L. Bick
   • W. R. Schmalhorst
   • E. Shanbrom

   Original Articles Pages: 741 - 749

8. Absorption of intact protein by colonic epithelial cells of the rat

   • Bonnie S. Worthington
   • Cyril Enwonwu

   Original Articles Pages: 750 - 763

9. Quantitation of intestinal-tissue layers from their histology

   • M. K. Younoszai
   • J. C. Ranshaw

   Original Articles Pages: 764 - 770

10. Multiple lipomas of the stomach and duodenum

    • Tony M. Deeths
    • Peter N. Madden
    • Wylie J. Dodds

    Forums in Gastrointestinal Roentgenology Pages: 771 - 774

11. A new technique of endoscopic esophageal biopsy using multipurpose biopsy tube in the diagnosis of reflux esophagitis

    • J. C. Mangla
    • T. M. Kalra

    Methods and Techniques Pages: 775 - 780

12. Fiberoptic endoscopic diagnosis and treatment of a congenital esophageal diaphragm

    • Tuvia Gilat
    • Paul Rozen

    Case Report Pages: 781 - 785

13. Metastatic malignant melanoma of the esophagus

    • C. B. Wood
    • R. A. B. Wood

    Case Report Pages: 786 - 789

14. Cholangitis complicating congenital hepatic fibrosis

    • Stephen A. Howlett
    • Stanford T. Shulman
    • James J. Cerda

    Case Report Pages: 790 - 795

15. Adenocarcinoma of the jejunum associated with nontropical sprue

    • Edward P. Petreshock
    • Marius Pessah
    • Eliyahu Menachemi

    Case Report Pages: 796 - 802