"bacterium in the stomach to achieve symptomatic relief and total regression of some of the infection-associated non-malignant as well as malignant diseases, particularly extranodal marginal B-cell lymphoma.Drug regimens of amoxicillin, clarithromycin, plus a proton pump inhibitor or metronidazole, clarithromycin, plus a proton pump inhibitor have been used to treat "S. heilmani s.l.-associated upper gastrointestinal tract diseases successfully.