1. Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA.
2. Division of Thoracic Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
3. Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
4. Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
5. Biogen, Cambridge, MA 02142, USA.
6. Division of Surgical Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.