Marco Brambilla1, Donald P Frush2, Madan M Rehani3. 1. President of the European Federation of Organisations for Medical Physics; Head of Medical Physics Department, University Hospital Maggiore della Carità, Novara, Italy. Electronic address: marco.brambilla@maggioreosp.novara.it. 2. Consulting Professor in the Department of Radiology, Lucille Packard Children's Hospital at Stanford, Stanford, California. 3. Director, Global Outreach for Radiation Protection; Program Chair, Radiation Safety Committee, Massachusetts General Hospital, Boston, Massachusetts.