1. Department of Radiation Oncology, Affiliated Taixing People’s Hospital of Nanjing Medical University, Kangda College, Taixing, People’s Republic of China
2. Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, People’s Republic of China
3. Department of Thoracic Surgery, Affiliated Taixing People’s Hospital of Nanjing Medical University, Kangda College, Taixing, People’s Republic of China
4. Department of Radiotherapy and Oncology, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, People’s Republic of China.