"Khat Chewing and Lifestyle Risk Factors Associated with Helicobacter pylori Infection Among Adults with Dyspepsia in Sana’a, Yemen: A Cross-Sectional Study" (2026) مجلة جامعة صنعاء للطب والعلوم الصحية, 20(1), ص 464–468. doi:10.59628/jchm.v20i1.2395.