| Affiliation: | 1. Center for Proton Therapy, Paul Scherrer Institute, Villigen PSI, Switzerland;2. Department of Radiation Oncology, Universit?tspital Zürich, University of Zurich, Switzerland;3. Department of Radiation Oncology, Inselspital, University of Bern, Switzerland;4. Department of Radiation Oncology, Geneva University Hospital, Geneva, Switzerland;5. Department of Anesthesia, University Children's Hospital Zurich, Switzerland;6. Department of Oncology, University Children's Hospital Zurich, Switzerland |
