1. Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
2. College of Stomatology, Dalian Medical University, Dalian 116044, Liaoning, China
3. Institute (College) of Integrative Medicine, Dalian Medical University, Dalian 116044, Liaoning, China
4. Department of Gastroenterology, Liaoning University of Traditional Chinese Medicine, Shenyang 110032, Liaoning, China
5. Department of Scientific Research, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
6. School of Medical Laboratory, Tianjin Medical University, Tianjin 300000, Tianjin, China
7. Department of Palliative Medicine, Graduate School of Medicine, Juntendo University, Tokyo 1138421, Japan
8. Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China