M Ines Boechat1,2, Dorothy I Bulas3,4. 1. World Federation for Pediatric Imaging, Reston, VA, USA. IBoechat@mednet.ucla.edu. 2. Departments of Radiology and Pediatrics, David Geffen School of Medicine at UCLA, 750 Westwood Blvd., Los Angeles, CA, 90095, USA. IBoechat@mednet.ucla.edu. 3. World Federation for Pediatric Imaging, Reston, VA, USA. 4. Diagnostic Imaging and Radiology, Children's National Health Systems, George Washington University, Washington, DC, USA.