Tracy Laycock's son had proton beam therapy to treat a tumour
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'You just want to do everything possible for your child'

31 August 2014 Last updated at 10:20 BST

Five-year-old Ashya King has been found in Spain, after his parents took him out of hospital against doctors' advice.

His family had said they wanted to take him abroad for proton beam therapy to treat a brain tumour.

Tracy Laycock's son has had the treatment, and she explained how the procedure worked, saying she could "understand where this family is coming from".

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