Co-author Prof Frank Nestle said more work was needed on developing IgG4 as a potential test to improve patient care by helping to identify patients most likely to respond to treatments.

BBC: Skin cancer 'able to fight off body's immune system'

On April 5th John Hutton, the work and pensions secretary, announced plans to test telephone-based technology to spot potential benefit cheats.

ECONOMIST: Polygraphs hit the big time