1. Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
2. Department of Cardiology
3. Integrated traditional Chinese and Western Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
4. Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
5. Department of Cardiology, Qinghai Red Cross Hospital, Xining, China.