"She lived, desperately thinking that she would get a transplant, and she was very optimistic about that option ."

1 in 3 people with cystic fibrosis who are waiting for a lung transplant will die. That's according to the Cystic Fibrosis Trust. It's exactly what happened to Clare Cruickshank from Peterborough. Paul Stainton spoke to Clare's mum, Ann.