1. Clinical Laboratory, The Second Hospital of Jilin University, Changchun, China
2. Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, China
3. Department of Hepatopancreatobiliary Medicine, The Second Hospital of Jilin University, Changchun, China
4. Department of Gastroenterology, The Second Hospital of Jilin University, Changchun, China