Leest, H.T.J.I. de

patient pylori eradication group study nsaid ulcer placebo group helicobacter placebo therapy pylori eradication eradication group helicobacter pylori helicobacter pylori infection treatment gastriti e ffect disease gastroprotective nsaid treatment infection gastroduodenal pylori eradication therapy trial center netherland nsaid users gastroduodenal ulcers corpus flammatory month histology number result eradication therapy omeprazole 20 mg gastroprotective drugs rheumatology biopsy resistance vu university antrum endoscopy randomized study medication clarithromycin table difference signi leest metronidazole arthritis culture university atrophy department helicobacter pylori eradication gastroenterol score anti-in agent medication 3 months nonsteroidal omeprazole erosion dyspepsia flammation metaplasia effect baseline incidence amoxicillin antibiotic inhibitor 12 months van zwet aa specimen ficant