Current clotting factor injections can cost between £150,000 ... Before the age of 12 the liver is still developing, but scientists hope it will be an option from then on Clive Smith, chairman ...
Clotting-protein, Factor VIII, often came from high-risk donors ... "From the age of 11, to my mid-30s, my liver was under constant attack by a virus," he said. "All through my teenage years ...