1. Department of Cardiology Shandong Provincial Hospital Affiliated to Shandong First Medical University Jinan Shandong China
2. Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine Shandong University Jinan Shandong China
3. Department of Cardiology ZiBo Central Hospital Zibo Shandong China
4. Department of Geriatric Cardiology Shandong Provincial Hospital Affiliated to Shandong First Medical University Jinan Shandong China