4Crabtree J E, Xiang E, Lindley I J, et al. Induction of interleukin- 8 secretion from gastic epithetlialcells by a Cag A negative isogenetic mutant of Helicobacterpylori. Clin Pathal, 1995, 48 : 967.
5Me Carthy DM. Maintenance therapy f or peptic ulcer-who needs it. Gast roent eral Jpn, 1993, 28(Suppl 5) : 172.