Journal of digestive diseases
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To explore the features and clinical significance of serum pepsinogen (PG) assay in a follow-up study on a high-risk gastric cancer (GC) population. ⋯ The serum PG levels were influenced by the physiopathologic status of gastric mucosa and H. pylori infection, but they altered during the period of follow up. Serum PG assay might be a feasible and appropriate procedure to use in following up on a high-risk GC population.