April 6th, 2014. Marco Riboldi has been invited by the European Society for Radiotherapy and Oncology (ESTRO) for the joint ESTRO-AAPM symposium “Image guidance (or lack thereof) in proton therapy” to give a keynote lecture titled “4D imaging for motion ” within the 33rd ESTRO Conference, which will be held in Wien from the 4th to the 8th of April. Link.