Helicobacter pylori infection in elderly patients.
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005853:Geriatrics; D016481:Helicobacter Infections / Q000150:complications / Q000175:diagnosis*; D016480:Helicobacter pylori; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000175:diagnosis / Q000382:microbiology*; D012307:Risk Factors