Development and multi-center validation of machine learning models based on targeted metabolomics for rheumatoid arthritis. - Tang, Jifeng; Jiang, Renquan; Gao, Huali; Xia, Jinfang; Ma, Yanhui; Han, Zhenge; Yu, Haitao; Zhang, Yizhong; Xie, Fang; Sheng, Huiming; Lin, Jinpiao (Journal of Translational Medicine, 2025)