1. Department of Cardiology, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250014, China
2. Department of Cardiology, Central Hospital Affiliated Shandong First Medical University, Jinan 250014, China
3. Department of Cardiology, The Third Affiliated Hospital of Shandong First Medical University (Affiliated Hospital of Shandong Academy of Medical Sciences), Jinan 250031, China