8. What is physiological gastroesophageal reflux?
J.R. Bennett (Hull)

9. What is the role of alcoholism in GER and esophagitis?
H. Tonnesen (Copenhagen)

10. What factors are predictive of esophageal ulceration in GER?
G. Cadiot, J. Vatier, M. Mignon (Paris)

11. What is the frequency of gastroesophageal reflux in young subjects?
JM. Debonne, P. Berthezene, F. Klotz, J.C. Grimaud, J.P. Durbec (Marseilles)

12. What is the prevalence of gastroesophageal reflux disease and of reflux esophagitis?
R.C. Heading (Edinburgh)

13. Is there a relationship between esophagitis and duodenal ulcer?
G. Champault, J.C. Kikassa (Paris)

14. What data do the prospective epidemiologic studies of esophagitis provide?
F. Klotz, JM. Debonne, J.C. Grimaud (Marseilles)