1. Division of Emergency Radiology , Department of Radiology, Penn State Milton S. Hershey Medical Center , Hershey, PA , USA
2. Radiology and Biomedical Imaging , Yale University School of Medicine , New Haven, CT , USA
3. Health Law Management and Policy, Boston University Medical Campus , Boston, MA , USA
4. SIDM , 5 Hitching Post , Plymouth, MA 02360 , USA