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Media playback is unsupported on your device Media caption Medical staff have involved 54 patients from Wales in the cooling trial. A year ago, Andrew Barnett collapsed and his heart stopped beating, as he played football with his young son. Luckily, it was at on a pitch at a Cardiff leisure centre - which had a defibrillator - and the manager knew CPR techniques. Andrew, 46, was revived and became part of a hospital trial to see if cooling the body in intensive care helps recovery. The event was a complete blank but he realises how close to death he came. The cooling trial, involving seven UK hospitals, is being led by researchers at the University Hospital of Wales, Cardiff. Altogether, ... Full story

22 January