Seven-day therapy for Helicobacter pylori in the United States. Aliment Pharmacol Ther 2004 Jul 1; 20(1): 99–107 Article PubMed CAS Google Scholar de Boer WA, van Etten RJ, Lai JY, et al. Effectiveness of quadruple therapy using lansoprazole, instead of omeprazole, in curing Helicobacter...