Great Ormond Street stem cell freezing 'may have led to death'
A problem freezing stem cells may have contributed to the death of a 12-year-old girl, a coroner has ruled.
Cancer patient Sophie Ryan-Palmer died in 2013 after the frozen cells were used in a bone marrow transplant at Great Ormond Street Hospital.
The hospital said tests carried out before the transplants had found no problems.
BBC London reporter Victoria Hollins spoke to Sophie's mother Debbie Ryan and stem cell scientist Dr Michael Watts.
25 Nov 2014
- From the section London