An ensemble machine learning-based risk stratification tool for 30-day mortality prediction in critically ill cardiovascular patients. - Lei, Mingxing; Liu, Xiao; Cheng, Longcan; Li, Yan; Tang, Nan; Song, Jie; Song, Mi; Su, Qingqing; Liu, Mingxuan; Fu, Shihui; Sun, Baisheng; Gao, Yuan (Cardiovascular Diabetology, 2025)