1. Department of GastroenterologyBeijing Hospital of Traditional Chinese Medicine Affiliated With Capital Medical University Beijing China
2. Division of Digestive DiseasesEmory University School of Medicine Atlanta Georgia USA
3. Department of Pathology and Laboratory MedicineBrown University Providence Rhode Island
4. Department of Thoracic SurgeryPeople's Hospital of Rizhao Shandong China
5. Division of Renal MedicineDepartment of MedicineEmory University School of Medicine Atlanta Georgia USA
6. Atlanta Veterans Administration Medical Center Decatur Georgia USA