Helicobacters are indigenous to the human stomach: duodenal ulceration is due to changes in gastric microecology in the modern era.
Blaser
M J
MJ
Division of Infectious Diseases, A3310 Medical Center North, Vanderbilt University School of Medicine, Nashville, TN 37232-2605, USA.
D004381:Duodenal Ulcer / Q000382:microbiology*; D016481:Helicobacter Infections / Q000150:complications*; D016480:Helicobacter pylori; D006801:Humans; D010437:Peptic Ulcer / Q000382:microbiology*; D013272:Stomach Diseases / Q000382:microbiology*