Hierarchical online contrastive anomaly detection for fetal arrhythmia diagnosis in ultrasound. - Xin Yang 009; Lian Liu; Zhongnuo Yan; Junxuan Yu; Xindi Hu; Xuejuan Yu; Caixia Dong; Ju Chen; Hongmei Liu; Zhuan Yu; Xuedong Deng; Dong Ni 001; et al. (Medical Image Anal., 2024)