1. Department of Laboratory Medicine; Laboratory of Molecular Biology; Huadong Hospital affiliated to; Fudan University; Shanghai China
2. Department of Gastroenterology; Gerontology Institute of Shanghai affiliated to; Huadong Hospital; Fudan University; Shanghai China
3. Department of Endoscopy; Huadong Hospital; Fudan University; Shanghai China
4. Shanghai AB Sciex Analytical Instrument Trading Co., Ltd; Shanghai China
5. Shanghai Shine Clinical Laboratories, Inc., The Research base of MDT, DCMST, Ministry of Health; Shanghai China