1. Department of Cardiology, Shandong Provincial Hospital, Shandong University
2. Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University
3. Department of Cardiology, Dongying People's Hospital
4. Jinan Huimin Middle School
5. Department of Cardiology, Jining Key Laboratory for Diagnosis and Treatment of Cardiovascular Diseases, Affiliated Hospital of Jining Medical University