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Table 4 Late morbidities (CTCAE v5.0) after carbon-ion based radiotherapy for primary and recurrent sacral chordoma

From: High-dose carbon-ion based radiotherapy of primary and recurrent sacrococcygeal chordomas: long-term clinical results of a single particle therapy center

Grade 0 1 2 3 4
Skin 62 6 0 0 0
Gastrointestinal tract 66 0 2 0 0
Peripheral nerves 62 1 2 1 2
Sacral insufficiency fractures 35 21 1 11 0
  1. The values given are patient numbers
  2. Abbreviations: EQD2 Cumulative equivalent radiation dose, GTV Gross tumor volume