Sally Roberts has exclusively told ITV Daybreak that she is concerned that radiotherapy treatment could be damaging to her son Neon, by affecting his DNA.
She said there are "so many" other treatments that her son could be having instead.
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A chilly night with widespread frost and fog in some parts of the UK which will be slow to lift in the morning.
Uptown Funk, his collaboration with Bruno Mars, reached number one in the charts again this evening.
ITV News spoke to Nick Channing-Williams who described the freezing conditions on board the car ferry that caught fire earlier today.