A Leicestershire woman is calling for umbilical cords to be saved after her daughter's leukaemia was treated with stem cells from a US donor bank.
Amy Winston-Hart said the treatment should be expanded
A match for three-year-old Eva Winston Hart was only found after the search was extended across the Atlantic.
Eva is doing well back home in Market Harborough, but there is still the risk her body could reject the donor tissue.
Her mother, Amy, has now said more use should made of cord blood which is often thrown away in NHS hospitals.
The blood is taken from umbilical cords which are frozen soon after birth. Many researchers believe it has the potential to treat dozens of conditions.
Mrs Winston Hart called for a larger and more intigrated system of cord blood banks to be set up.
She said: "I feel this is something the government needs to invest more money into.
"Childhood cancers are on the increase and something needs to be done about this. It is a natural, life-saving resource that is currently being wasted."
She added: "If it wasn't for that one couple who decided to freeze the blood from that cord, then Eva might not be here today."
A Department of Health spokesman said: ""We are committed to supporting and facilitating cord blood transplants wherever possible.
"The department provides financial assistance to the National Blood Service to help support the storage and use of bone marrow and peripheral blood stem cells, including the NHS Cord Blood Bank."