A. Alhaj, A. Al Wazeer, S. Abdulhafed, and M. 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, vol. 1, no. 1, Nov. 2022, doi: 10.65693/masj.2022.v1i1.15.