the study was initiated to evaluate the effect of n-methyl-n-nitro-n-nitrosoguanidine ( ng ) on gastric intraluminal prostaglandin release during a 30-day treatment period and to investigate the effect of a stable prostaglandin e1 analogue ( misoprostol ) on ng-induced gastric mucosal damage during the same time period .
C0038351
gastric
C0017136
gastric mucosal