1 Department of Cardiology, Shiyan Taihe Hospital, Hubei University of Medicine, Shiyan City, Hubei Province, China. Electronic address: zzqun21@126.com.
2 Department of Cardiology, Heart Center, Tampere University Hospital, and School of Medicine, Tampere University, Tampere, Finland. Electronic address: Kjell.Nikus@sydansairaala.fi.
3 Department of Cardiology, Shiyan Taihe Hospital, Hubei University of Medicine, Shiyan City, Hubei Province, China. Electronic address: sythwcq@medmail.com.cn.