Alhaj, A. et al. 2022.  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, 1 (Nov. 2022). DOI:https://doi.org/10.65693/masj.2022.v1i1.15.