It's one of a parent's worst nightmares: your child gets diagnosed with a terminal illness. What happens as your child goes through chemotherapy and all the struggles? How do you, as carer, deal with it? Joanna Dolan talks about the process of having a child die of cancer, how it impacts the whole family, the general lack of support available for carers in this situation and how she's helping families uncover their real medical history.

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