1. Department of Radiology, Hangzhou Xixi Hospital, Hangzhou 310000, Zhejiang, China
2. Department of Radiology, Hangzhou 6th People’s Hospital, the Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310000, Zhejiang, China
3. Department of Radiation Oncology, Hangzhou Cancer Hospital, Zhejiang University Cancer Centre, Hangzhou First People’s Hospital Group, Hangzhou 310000, Zhejiang, China
4. Department of Radiation Oncology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou 310000, Zhejiang, China
5. Department of Radiology, The Fourth Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310000, Zhejiang, China
6. Department of Radiation Oncology, Xiamen Cancer Hospital, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen 361003, Fujian, China
7. Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey, Rutgers University, New Brunswick, NJ 07097, USA
8. Medical Physics Program, University of Nevada, Las Vegas, NV 89154, USA