1. Department of Emergency Medicine, Sir Run Run Shaw Hospital, Hangzhou, China
2. Key Laboratory of Emergency and Trauma, Hainan Medical University, Haikou, China
3. Department of Biostatistics, Harvard T H Chan School of Public Health, Boston, USA
4. Laboratory for Computational Physiology, Massachusetts Institute of Technology, Cambridge, USA
5. Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, USA
6. Department of Intensive Care Medicine, Royal Perth Hospital, Royal Perth Hospital, Perth, Australia
7. Medical School, University of Western Australia, Perth, Australia
8. School of Veterinary and Life Sciences, Murdoch University, Perth, Australia