A heart patient from London is working to ensure others benefit from the treatment which has "turned his life around".
Ian Rosenberg was told he had just months to live when he underwent a stem cell transplant in Germany last year.
Now Mr Rosenberg can once more walk upstairs and has been able to return to his beloved golf course.
His recovery prompted him to set up the Heart Cells Foundation, which is to fund UK research into the treatment.
Mr Rosenberg, 67, who told his story to BBC Radio 4's You and Yours programme, said: "My heart problems started when I was in my late 30s when I had a heart attack."
Mr Rosenberg, who worked in the fashion industry supplying Marks and Spencers, returned to work and continued what he admits was a stressful life style.
His work involved travelling between his factories which were situated across the UK.
But in the early 90s he fell ill again and had to have open-heart surgery.
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