An interpretable machine learning approach using nnU-Net-based radiomics for preoperative risk stratification of thymic epithelial tumors: a multicenter study. - Rongji Gao; Chang Rong; Rongli Ran; Xiaomin Zheng; Kaicai Liu; Weiyuan Wang; Shuai Li; Juan Zhang; Jian Zhou; Hui Yang; Xingwang Wu (BMC Medical Imaging, 2026)