1 Department of Radiology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China ; Department of Radiology, Nanjing Jinling Hospital, Clinical School of Medical College, Nanjing University, Nanjing, People's Republic of China.
2 Department of Radiology, Fudan University Shanghai Cancer Center, Shanghai, People's Republic of China.
3 Department of Radiology, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, People's Republic of China.