1. Intensive Care Unit of Tianjin Medical University General Hospital, Tianjin, China
2. Department of Respiratory and Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China
3. NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
4. Neuropharmacology Section, Laboratory of Toxicology & Pharmacology, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA