Abuarij M, OBADI et al A. Association Between Chronic Urticaria and Helicobacter pylori Infection Among Patients Attending Major Hospitals in Sana’a, 2025: A Case-Control Study. 21UMAS Institutional Repository [Internet]. 2026 Sep. 30 [cited 2026 Oct. 30];7(1):1-15. Available from: https://ojs.21umas.edu.ye/irss/article/view/423