Froehlich, F Duodenal bacterial overgrowth: which is the best diagnostic tool? [electronic resource] - The American journal of gastroenterology Apr 1994 - 643 p. digital Publication Type: Comment; Letter ISSN: 0002-9270 Subjects--Topical Terms: Bacterial Infections--diagnosisDuodenum--microbiologyGastrointestinal Contents--microbiologyHumansSpecimen Handling--methods