AUTHOR=Zhao Feng , Chen Yulan , Liu Haina , Jin Lei , Feng Xin , Dai Bingbing , Chen Meng , Wang Qiao , Yao Yuxin , Liao Ruobing , Zhao Junyi , Qu Bingjia , Song Ying , Fu Lingyu TITLE=The interaction between a leflunomide-response methylation site (cg17330251) and variant (rs705379) on response to leflunomide in patients with rheumatoid arthritis JOURNAL=Frontiers in Pharmacology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1499723 DOI=10.3389/fphar.2025.1499723 ISSN=1663-9812