title: The role of endoscopy in the surveillance of premalignant conditions of the upper gastrointestinal tract. American Society for Gastrointestinal Endoscopy.
mesh_terms: D016099:Endoscopy, Gastrointestinal; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis* / Q000453:epidemiology; D006801:Humans; D011230:Precancerous Conditions / Q000175:diagnosis* / Q000453:epidemiology; D012307:Risk Factors