1 Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China.
2 Lankenau Medical Center, Wynnewood, Pennsylvania, USA.
3 Department of Electrocardiogram, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China. Electronic address: 1714271@zju.edu.cn.
4 Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China. Electronic address: liutongdoc@126.com.