1. Changshu First People’s Hospital Affiliated to Soochow University, Changshu, Jiangsu, China
2. The Fifth People's Hospital of Changshu, Changshu, Jiangsu, China
3. Changshu Medical Emergency Center, Changshu, Jiangsu, China
4. Emergency Department, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China