1. University of Oxford, Department of Oncology, Oxford, United Kingdom
2. University of Dundee, School of Science and Engineering, United Kingdom
3. iThera Medical GmbH, Munich, Germany
4. University of Twente, Tech Med Centre, Multi-Modality Medical Imaging, Enschede, The Netherlands
5. St. Vincent’s Private Hospital, Department of Medical Physics, Dublin, Ireland
6. University of Cambridge, Department of Physics, Cambridge, United Kingdom