“Khat Chewing and Lifestyle Risk Factors Associated With Helicobacter Pylori Infection Among Adults With Dyspepsia in Sana’a, Yemen: A Cross-Sectional Study”. 2026. Sana’a University Journal of Medicine and Health Sciences 20 (1): 464-68. https://doi.org/10.59628/jchm.v20i1.2395.