1 Department of Radiology, European Institute of Oncology, Milan, Italy.
2 Department of Thoracic Surgery, European Institute of Oncology, Milan, Italy.
3 Department of Hematology/Oncology and Department of Radiology, Boston Children's Hospital, Boston, MA, USA; Department of Radiology, University of Massachusetts Medical School and University of Massachusetts Memorial Medical Center, Worcester, MA, USA.
4 Molecular Imaging Laboratory, MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.