Breath test to detect cancer
Scientists believe they can test whether people are likely to have stomach cancer by analysing their breath.
Stomach cancer, also known as gastric cancer, is a relatively uncommon cancer that affects about 7,300 people each year in the UK.
The initial symptoms are often mistaken for other complaints and there is no effective early-stage screening test.
The new test senses tiny changes in the levels of particular compounds in exhaled breath, identifying the development of stomach cancer.