Development of a real-time polymerase chain reaction (RT-PCR) assay for simultaneous detection of Helicobacter pylori infection and genetic mutations associated with clarithromycin resistance: A single-center, cross-sectional study from Singapore. - Jiang B; Koo SH; Ang DSW; Ang TL; Lee HZ; Tan TY (Diagnostic microbiology and infectious disease, 2026)