1. Department of Deputy Chief Physician of Gastroenterology, The First People’s Hospital of Longquanyi District, Chengdu, Sichuan, China
2. Department of Chief Physician of Ultrasound, The First People’s Hospital of Longquanyi District, Chengdu, Sichuan, China
3. Department of Gastroenterology, The Second Traditional Chinese Medicine Hospital of Sichuan Province, Chengdu, Sichuan, China
4. Department of Radiology, The First People’s Hospital of Longquanyi District, Chengdu, Sichuan, China
5. Department of Respiratory and Critical Care Medicine, The First People’s Hospital of Longquanyi District, Chengdu, Sichuan, China.