SOAT1 and rheumatoid arthritis: The primary MeSH terms included “Rheumatoid Arthritis,” “Leukemia,” “Lymphoproliferative Disorders,” “Hematologic Neoplasms,” “Cytokines,” and “Immune Dysregulation.” Free-text keywords such as “RA-associated leukemia,” “rheumatoid arthritis and hematological malignancies,” “immune dysregulation in RA and leukemia,” “methotrexate-induced leukemia,” and “JAK-STAT pathway in RA and leukemia” were also applied.