Bismuth-Based Quadruple Therapy as First-Line Treatment for Clarithromycin-resistant Helicobacter pylori Infection: A Prospective Randomized Comparison of 7- and 14-Day Treatment Regimens.

: Both 7-day and 14-day BQT were effective and safe as first-line therapy for HP infections identified as resistant to clarithromycin by RT-PCR. For clarithromycin-resistant HP infections, 7-day BQT may be sufficient as first-line therapy.