1. Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, Shandong 250299, P.R. China
2. Radiotherapy Department, Shandong Second Provincial General Hospital, Shandong University, Jinan, Shandong 250299, P.R. China
3. Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
4. Department of Pathology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Clinical Pathology, Shandong Lung Cancer Institute, Shandong Institute of Nephrology, Jinan, Shandong 250014, P.R. China
5. Department of Respiratory and Critical Care Medicine, Shandong Second Provincial General Hospital, Jinan, Shandong 250299, P.R. China
6. Department of Oncology, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250299, P.R. China
7. Generalsurgery Department, Wenshang County People’s Hospital, Wenshang, Shandong 272500, P.R. China
8. Department of Thoracic Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong 250117, P.R. China
9. Department of Hepatobiliary Intervention, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, P.R. China
10. Department of Gastrointestinal Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai, Shandong 264000, P.R. China
11. Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China