Application of tongue image characteristics and oral-gut microbiota in predicting pre-diabetes and type 2 diabetes with machine learning - Deng, Jialin; Dai, Shixuan; Liu, Shi; Tu, Liping; Cui, Ji; Hu, Xiaojuan; Qiu, Xipeng; Jiang, Tao; Xu, Jiatuo (Frontiers in Cellular and Infection Microbiology, 2024)