1. Cancer Center; The Second Hospital of Shandong University; Jinan China
2. Department of Pathology; Affiliated Hospital of Shandong University of Traditional Chinese Medicine; Jinan China
3. Department of Thoracic Surgery; Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences; Jinan China
4. Department of Pathology; Provincial Hospital Affiliated to Shandong University; Jinan China
5. Department of Radiation Oncology; Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences; Jinan China