1 Department of Radiology, Peking University Third Hospital, Beijing, China.
2 Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA.
3 University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA.
4 University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA; Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
5 University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA; Division of Hematology/Oncology, University of Pittsburgh, Pittsburgh, PA, USA.
6 University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA; Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA.
7 Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, USA. Electronic address: [email protected].