1. Department of Cardiology, Bazhong Central Hospital, Bazhong, Sichuan Province, China
2. ECG Function Department, Hengshui Eighth People’s Hospital, Hengshui, Hebei Province, China
3. Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University, Medical City, Riyadh, Saudi Arabia
4. Department of Chemistry, Faculty of Science, Isra University, Amman, Jordan
5. Department of Cardiology, Xianyang Central Hospital, Xianyang, Shaanxi Province, China