Brown University, Johns Hopkins University, Central South University, Johns Hopkins University, Brown University, Brown University, Brown University, Brown University, Brown University - Rhode Island Hospital, Brown University, Brown University, University of Virginia, University of Colorado, Aurora - Anschutz Medical Campus, Johns Hopkins University School of Medicine, University of Michigan at Ann Arbor - Department of Emergency Medicine, Brown University - Department of Diagnostic Imaging, Brown University - Warren Alpert Medical School and Johns Hopkins University - Russell H. Morgan Department of Radiology and Radiological Science