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Atrophic gastritis during long‐term omeprazole therapy affects serum vitamin B12 levels

Nelis, Bloemena, Meuwissen, 1999, Alimentary pharmacology & therapeutics.

Hypergastrinaemia during long‐term omeprazole therapy: influences of vagal nerve function, gastric emptying and Helicobacter pylori infection

Lamers, Nelis, Bloemena, 1998, Alimentary pharmacology & therapeutics.