1. University of Illinois at Urbana-Champaign,Department of Nuclear, Plasma, and Radiological Engineering,Urbana,Illinois,United States of America
2. University of Pennsylvania,Department of Radiology,Philadelphia,Pennsylvania,United States of America
3. H3D Inc.,Ann Arbor,Michigan,United States of America
4. Yale University School of Medicine,Department of Radiology and Biomedical Imaging,New Haven,Connecticut,United States of America