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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Pictures of a jubilant Boris Johnson feature on many of Saturday’s front pages.
The Central Belt of Scotland will continue to see rain and hill snow for much of the day.
A minute’s silence will be held on Monday for the victims.