Unsupervised machine learning model for phenogroup-based stratification in acute type A aortic dissection to identify postoperative acute gastrointestinal injury - Ma, Yuhu; Yang, Xiaofang; Weng, Chenxiang; Wang, Xiaoqing; Zhang, Baoping; Liu, Ying; Wang, Rui; Bao, Zhenxing; Yang, Peining; Zhang, Hong; Liu, Yatao (Frontiers in Cardiovascular Medicine, 2025)