1. Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
2. Department of Medical Imaging and Interventional Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, PR China
3. Department of Pathology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
4. Department of Radiology, Timmins District Hospital, Ontario, Canada