Presence of Helicobacter pylori in the duodenum, antrum, and fundus in control subjects and patients with duodenal ulcer, gastric ulcer, gastritis, or erosive duodenitis. Histological analysis of 357 subjects

1. Csendes, A.
2. Smok, G.
3. Burdiles, P.
4. Blanco, C.
5. Rodas, J.