1. Department of Gastroenterology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
2. Department of Pathology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
3. Department of Radiography, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
4. Department of Neurosurgery & Neurocritical care, Huashan Hospital, Fudan University, Shanghai, China
5. Department of Critical care, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China