Ahlam Mohsen Kudaier. “Investigation of Rheumatoid Factor in the Serum of Individuals Vaccinated With Corona AstraZeneca and Pfizer Vaccines”. Open Herald: Periodical of Methodical Research, vol. 2, no. 4, Apr. 2024, pp. 35-38, https://academiaone.org/index.php/6/article/view/722.