1. Department of Critical Care Medicine Zhuhai People's Hospital (Zhuhai hospital affiliated with Jinan University) Zhuhai China
2. Department of Critical Care Medicine, First Affiliated Hospital of Guangxi Medical University Nanning China
3. Affiliated Hospital of North Sichuan Medical College, Nanchong Central Hospital Nanchong City China
4. Department of Critical Care Medicine Chongqing Bishan District People's Hospital (Bishan Hospital, First Affiliated Hospital of Chongqing Medical University) Bishan China