1. Department of Radiology, Division of Thoracic Imaging and Intervention, Massachusetts General Hospital, 55 Fruit St, Founders 202, Boston, MA 02114.
2. Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston, TX.
3. Thoracic Imaging and Intervention, Department of Radiological Sciences, UCLA Medical Center, Los Angeles, CA.
4. Department of Pathology, Massachusetts General Hospital, Boston, MA.
5. Department of Pathology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.