1. Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, National Key Clinical Specialty, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Anshan Road No. 154, Heping District, Tianjin, 300052, China
2. School of Biomedical Engineering and Technology, Tianjin Medical University, Tianjin, 300070, China
3. Department of Geriatrics, General Hospital, Tianjin Medical University, Tianjin, 300052, China