1. Colitis associated with oral clindamycin therapy

   • Lawrence J. Hoberman
   • Edwin H. Eigenbrodt
   • John S. Fordtran

   Original Articles Pages: 1 - 17

2. Chronic carriers of hepatitis B antigen (HBsAg)

   • J. P. Villeneuve
   • G. Richer
   • A. Viallet

   Original Articles Pages: 18 - 25

3. Clindamycin-associated colitis

   • Francis J. Tedesco

   Original Articles Pages: 26 - 32

4. Relationship between the changes in gastrin levels and intestinal properties in the starved rat

   • Lenard Lichtenberger
   • Jack D. Welsh
   • Leonard R. Johnson

   Original Articles Pages: 33 - 38

5. The effect of cholecystokinin-pancreozymin on circulating gastrin levels in man and dog

   • G. Lanciault
   • A. Ertan
   • F. P. Brooks

   Original Articles Pages: 39 - 43

6. Segmental narrowing of the sigmoid colon

   • S. B. Lydon
   • W. Wu
   • W. J. Dodds

   Forums in Gastrointestinal Roentgenology Pages: 44 - 46

7. Use of a steerable catheter for intubating patients with Zenker's diverticulum

   • Wylie J. Dodds
   • William N. Miller
   • Ronald C. Arndorfer

   Methods and Techniques Pages: 47 - 48

8. Reflux esophagitis

   • Wylie J. Dodds
   • Walter J. Hogan
   • William N. Miller

   Progress Report Pages: 49 - 67

9. Etiology of gastrointestinal cancer

   • Paul Sherlock

   Editorial Pages: 68 - 70

10. Identical twins discordant for ulcerative colitis with colon cancer

    • William Bisordi
    • Charles J. Lightdale

    Case Report Pages: 71 - 73

11. Acute colitis resembling ulcerative colitis in the hemolytic-uremic syndrome

    • Gregory E. Craner
    • George E. Burdick

    Case Report Pages: 74 - 76

12. Immunoglobulin characterization

    • C. Figarella
    • George W. Brasher
    • A. Michael Spiekerman

    Letters to the Editor Pages: 77 - 77

13. Pelvic actinomycosis, presenting as a rectal stricture

    • Michael Kozower

    Letters to the Editor Pages: 77 - 78

14. News and notices

    News Pages: 79 - 80