1. Emergency Department Capital Medical University Affiliated Anzhen Hospital Beijing China
2. Department of Cardiology of Second Affiliated Hospital of Qiqihaer Medical Collage Qiqihar Heilongjiang People's Republic of China
3. Otolaryngology Head and Neck Surgery Capital Medical University Affiliated Anzhen Hospital Beijing China
4. Department of Cardiology of Luhe Hospital Capital Medical University Beijing China
5. Department of Cardiology Tianjin Medical University General Hospital Tianjin China
6. Department of Cardiology Capital Medical University Affiliated Anzhen Hospital Beijing China