1. Department of Cardiology, Zhejiang Hospital, Hangzhou, China.
2. Zhejiang Provincial Key Lab of Geriatrics, Department of Geriatrics, Zhejiang Hospital, Hangzhou, China.
3. Department of Cardiology, Lishui Hospital of Zhejiang University, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, Lishui, China.
4. Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
5. Department of Cardiology, Taizhou Hospital, Wenzhou Medical University, Taizhou, China.
6. Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, Indiana, USA.