[Correspondence] Late toxicities of head and neck radiotherapy

The head and neck service at Princess Margaret Cancer Center should be commended for their excellent study of radiation late toxicities (RLTs).1 In a cohort of 7622 patients, Mathew and colleagues identify modifiable and non-modifiable risk factors associated with RLTs. RLTs were found to be associated with decreased survival, but this association was mitigated in a cohort referred to a specialist RLT clinic.