Sjöstedt S, Heimdahl A, Kager L, Nord C E
Eur J Clin Microbiol. 1985 Feb;4(1):49-51. doi: 10.1007/BF02148660.
The microbial colonization of the oropharynx, the esophagus and the stomach were studied in 60 patients. Patients with gastritis, carcinoma and a history of gastric resection harboured more microorganisms in their stomachs than patients with gastric or duodenal ulcers. Patients with gastric carcinoma were colonized with the highest numbers of different microorganisms.