1. Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu Province, PR China
2. Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai, PR China
3. The Comprehensive Cancer Centre of Drum Tower Hospital, Medical School of Nanjing University & Clinical Cancer Institute of Nanjing University, Nanjing, Jiangsu Province, PR China
4. Department of Radiation Oncology and Winship Cancer Institute, Emory University, Atlanta, GA, USA