1. Department of Cardiology, Nanyang Second People’s Hospital, Nanyang, China
2. The First Department of Cardiology, The Eighth People’s Hospital of Hengshui City, Hengshui, China
3. The Second Department of Cardiology, The Eighth People’s Hospital of Hengshui City, Hengshui, China
4. Department of Cardiovascular Medicine, The First Affiliated Hospital of Baotou Mdical College, Baotou, China