1. Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
2. Department of Radiation Oncology, The Suzhou Affiliated Hospital of Anhui Medical University, Suzhou, China
3. The First Clinical Medical College of Anhui Medical University, Hefei, China
4. Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, China