1. Emergency Medicine Department; The Military General Hospital of Beijing PLA; Beijing China
2. Department of Intensive Care Unit; General Hospital of Guangzhou Military Command; Guangzhou China
3. State Key Laboratory of Ophthalmogy, Zhongshan Ophthalmic Center; Sun Yat-Sen University; Guangzhou China
4. Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology; Nanfang Hospital, Southern Medical University; Guangzhou China