¹Beaumont Health, Radiation Oncology, Royal Oak, USA; ²Mayo Clinic, Radiation Oncology, Scottsdale, USA; ³Texas Center for Proton Therapy, Radiation Oncology, Irving, USA

(1)Proton Therapy Center - Santa Chiara Hospital, Department of Oncology, Trento, Italy;(2)University of Bologna- S. Orsola-Malpighi Hospital, Department of Pediatrics, Bologna, Italy;(3)Institute of Neurological Science of Bologna IRCCS, Pediatric Neuroradiology, Bologna, Italy;(4)University of Bologna- S. Orsola-Malpighi Hospital, Radiation Oncology Center- Dept. of Experimental- Diagnostic and Specialty Medicine – DIMES, Bologna, Italy;

¹Mayo Clinic, Radiation Oncology, Rochester, USA; ²University of Pittsburgh, Neurological Surgery, Pittsburgh, USA; ³Neurological Institute, Taipei Veteran General Hospital, Neurosurgery, Taipei, Taiwan; ⁴Na Homolce Hospital, Stereotactic and radiation neurosurgery, Prague, Czech Republic; ⁵Postgraduate Institute of Medical Education and Research, Neurosurgery, Chandigarh, India; ⁶Postgraduate Institute of Medical Education and Research, Radiotherapy, Chandigarh, India; ⁷Koc University School of Medicine, Neurosurgery, Istanbul, Turkey; ⁸Yale, Neurosurgery, New Haven, USA; ⁹Université de Sherbrooke, Neurosurgery, Quebec, Canada; ¹⁰University of Virginia, Neurosurgery, Charlottesville, USA; ¹¹Mayo Clinic, Radiation Oncology, Jacksonville, USA

¹GROW School for Oncology, Maastricht University Medical Centre+, Department of Radiation Oncology (Maastro), Maastricht, The Netherlands

(1)German Cancer Research Center - DKFZ, Medical Physics in Radiation Oncology, Heidelberg, Germany;(2)Heidelberg Institute for Radiation Oncology - HIRO, Radiooncology, Heidelberg, Germany;(3)Ludwig Maximilian University of Munich, Department of Physics, Munich, Germany;