It is hoped the discovery will lead to improved treatments for people with aggressive breast cancer.
Harri was diagnosed with a rare leukaemia after his mother took him to the doctor with a scratch on his eye.
The car flipped over and then crashed into the central reservation on the A4232 near Cardiff.
Cardiff City will "bounce back", says manager Neil Warnock after they slip back into the Premier League's bottom three.
Wales winger Daniel James is unaware of any interest from Leeds United and his fully focused on Swansea City.
South Wales Argus
About these results
Pandemic: How The Flu Changed Wales
Which one shortens our life expectancy more?
Sign up for our newsletter