1. Department of Cardiology General Hospital of Northern Theater Command of Jinzhou Medical University Shenyang China
2. Department of Cardiology Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine Shanghai China
3. Department of Cardiology General Hospital of Northern Theater Command of China Medical University Shenyang China
4. Department of Cardiology General Hospital of Northern Theater Command Shenyang China
5. National Key Laboratory of Frigid Zone Cardiovascular Diseases General Hospital of Northern Theater Command Shenyang China