1. Department of Radiology, Division of Thoracic Imaging and Intervention, Massachusetts General Hospital, Boston, MA
2. Department of Radiology, Ludwig-Maximilians-University, Munich, Germany
3. Department of Diagnostic Imaging, Lifespan Health System and Warren Alpert Medical School, Brown University Providence, RI
4. Department of Radiological Sciences, David Geffen School of Medicine, University of California, Los Angeles, CA