Self-supervised inter-intra period-aware ECG representation learning for detecting atrial fibrillation. - Xiangqian Zhu; Mengnan Shi; Xuexin Yu; Chang Liu 047; Xiaocong Lian; Jintao Fei; Jiangying Luo; Xin Jin 005; Ping Zhang; Xiangyang Ji (Biomed. Signal Process. Control., 2025)