1. Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
2. Department of Medical Physics, Aarhus University Hospital, Aarhus, Denmark
3. Laboratory of Radiation Physics, Odense University Hospital, Odense, Denmark
4. Department of Clinical Medicine, Faculty of Health Sciences, Aarhus University, Denmark
5. Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
6. Department of Oncology, Aarhus University Hospital, Aarhus, Denmark