1. Department of Cardiovascular Surgery; Zhengzhou Seventh People’s Hospital; Zhengzhou China
2. Department of Hemangioma Surgery; Henan Province People's Hospital; Zhengzhou China
3. Department of Respiratory and Critical Care Medicine; Mindong Hospital Affiliated to Fujian Medical University; Fu'an City China
4. Statistical Medicine and Preventive Medicine; Basic Medical College of Henan University; Kaifeng China
5. Royal Free London NHS Foundation Trust; London UK
6. Zhengzhou Seventh People's Hospital; Zhengzhou China