Identification of important risk factors for all-cause mortality of acquired long QT syndrome patients using random survival forests and non-negative matrix factorization

Cheng Chen, Jiandong Zhou, Haixu Yu, Qingpeng Zhang, Lianjun Gao, Xiaomeng Yin, Yingxue Dong, Yajuan Lin, Daobo Li, Yiheng Yang, Yunsong Wang, Gary Tse, Yunlong Xia