1. Department of Radiology, Tianjin Chest Hospital, Tianjin 300052, China
2. Department of Radiology, Ningbo No.2 Hospital, Ningbo 315012, China
3. School of Medical Imaging, Tianjin Medical University, Tianjin 300203, China
4. Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
5. Department of Radiology, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China