JAK-2 positive Polycythemia Vera in a Rheumatoid Arthritis patient: A case Report and literature review. J Med B Sci Res [Internet]. 2023 Jan. 12 [cited 2024 Sep. 20];4(1-2):117-21. Available from: https://jmbsr.emej.com.ng/index.php/jmbsr/article/view/187