The impact of Helicobacter pylori on routine upper gastro intestinal endoscopy : Proceedings of the workshop Helicobacter pylori and the new concepts in gastro-duodenal diseases. Prague, Charles University, 30.-31.10. 1992.

• M. Deltenre
• E. De Koster
• P. Denis
• N. Martin
• M. Ferhat
• M. Castro