In Regard to Ghirardelli et al

Affiliations

• ¹ Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York. Electronic address: [email protected].
• ² Department of Radiation Oncology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, German Cancer Consortium (DKTK), Partner Site DKTK-Freiburg, Freiburg, Germany.
• ³ Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York; New York Proton Center, New York, New York.