1. Guangzhou First People’s Hospital, School of Medicine, South China University of Technology, Guangzhou, People’s Republic of China
2. School of Management, Harbin Institute of Technology, Harbin, People’s Republic of China
3. School of Economics and Management, Ningbo University of Technology, Ningbo, People’s Republic of China
4. Department of Intensive Care Unit, Guangzhou First People’s Hospital, Guangzhou, People’s Republic of China