title: Early gastric cancer: report of five cases.
mesh_terms: D000368:Aged; D005260:Female; D005336:Fiber Optic Technology; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000453:epidemiology; D014481:United States