1. Department of Radiology Medical Community of Linhai First People's Hospital 375 Dayang West Road Linhai Zhejiang 317000 China
2. Department of Radiology Fudan University Shanghai Cancer Center 270 Dongan Road Shanghai 200032 China
3. Department of Oncology Shanghai Medical College Fudan University Shanghai 200032 China
4. Department of Radiology Shanghai Pulmonary Hospital 507 Zheng Min Road Shanghai 200433 China