title: Pre-endoscopy screening using serodiagnosis of Helicobacter pylori infection.
mesh_terms: D000328:Adult; D000465:Algorithms; D016099:Endoscopy, Gastrointestinal; D016481:Helicobacter Infections / Q000175:diagnosis*; D016480:Helicobacter pylori / Q000276:immunology; D006801:Humans; D008875:Middle Aged; D011237:Predictive Value of Tests; D012698:Serologic Tests