103. Is there a relationship between the degree of inhibition of acid secretion and the degree of endoscopic healing of esophagitis?
SJ. Sontag (Hines, Illinois)

104. What are the pharmacological and morphological consequences of inhibition of acid secretion?
P. Ruszniewski, M. Mignon (Paris)

105. Should gastrin levels be measured during long-term treatment with PPIs?
E.D. Dorval (Tours)

106. Do PPI effects on the cytochrome P₄₅₀ system have implications to significant drug interactions?
A. David Rodrigues (Abbott Park, Illinois), J. W. Freston (Farmington, Connecticut)

107. What is the short-term effect of the PPIs compared to other types of treatments in reflux esophagitis?
E. C. Klinkenberg-Knol (Amsterdam)

108. Does the treatment and healing of esophagitis influence the pathophysiology of reflux disease?
D. Armstrong (Hamilton)