1. Department of Cardiology, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, China
2. Institute of Geriatrics, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, China
3. Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
4. Department of Emergency Intensive Care Unit, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang, China