1. Cytoprotection by prostaglandins
2. 81st Ann. Meeting of the Am. Gastroent. Assoc.;Miller,1980
3. 46th Ann. Meeting of the Polish Assoc. of Gastroent.;Balint,1980
4. XXVIII Internat. Congress of Physiol. Sciences; Satellite Symposium on the “Gastrointestinal Defense Mechanisms”;Balint,1980
5. XXVIII Internat. Congress of Physiol. Sciences;Nafradi,1980