1. Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
2. Department of Cardiovascular Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
3. Department of Geriatric Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
4. Pancreas Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China