Peitz, U A practical approach to patients with refractory Helicobacter pylori infection, or who are re-infected after standard therapy. [electronic resource] - Drugs Jun 1999 - 905-20 p. digital Publication Type: Journal Article; Review ISSN: 0012-6667 Standard No.: 10.2165/00003495-199957060-00006 doi Subjects--Topical Terms: Drug Resistance, Microbial--immunologyHelicobacter Infections--therapyHelicobacter pyloriHumansSecondary PreventionTreatment Failure