1. Department of Pathology; Nanjing Drum Tower Hospital; Nanjing Jiangsu Province China
2. Department of Pathology; Jiangsu Provincial Hospital of Traditional Chinese Medicine; Nanjing Jiangsu Province China
3. Department of Pathology; Changzhou Second Hospital; Changzhou Jiangsu Province China
4. Department of Pathology; The First Affiliated Hospital of Soochow University; Suzhou Jiangsu Province China
5. Department of Gastroenterology; Nanjing Drum Tower Hospital; Nanjing Jiangsu Province China
6. Quality Care Medical Consulting, LLC; Lexington Massachusetts USA
7. Department of Pathology and Laboratory Medicine; Boston VA Healthcare System, Harvard Medical School; West Roxbury Massachusetts USA