Alhaj, Akram, Ashjan Al Wazeer, Samah Abdulhafed, and Mohammed Al Dhabiani. “ Rheumatoid Arthritis: Prevalence, Patterns of Presentations and Associated Factors Among Arthritis Patients in Military Hospital, Sana’a, Yemen 2019-2021”. Journal of 21 September university for medical and applied sciences 1, no. 1 (November 20, 2022). Accessed May 20, 2026. https://ojs.21umas.edu.ye/masj/article/view/15.