A young girl given a four percent chance of survival has beaten an aggressive form of childhood cancer. Four-year-old Isla Caton was diagnosed with stage four neuroblastoma, but now is cancer-free following a new treatment involving chemo and an antibody combination. Initially, the schoolgirl was fourth on the list to receive the treatment at a children's hospital in Barcelona, Spain, but was judged to be the fittest by doctors so she became the world’s first