1. Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan 250021, China
2. Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan 250021, China
3. Department of Neurosurgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan 250021, China
4. Department of Gastroenterology, Taian Hospital of Traditional Chinese Medicine, Tai'an 271000, China
5. Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan 250021, China
6. School of Medicine, Shandong University, Jinan 250012, China
7. Shandong University of Traditional Chinese Medicine, Jinan 250011, China