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| CTCAE version 5.0 | |
|---|---|
| Grade 1 | Asymptomatic |
| Grade 2 | Symptomatic; altered swallowing/eating; oral supplements indicated |
| Grade 3 | Severely altered swallowing/eating; tube feeding, total parenteral nutrition, or hospitalization indicated |
| Grade 4 | Life-threatening consequences; urgent operative intervention indicated |
| Grade 5 | Death |
CTCAE: Common Terminology Criteria for Adverse Events.
