Researchers at an Aberdeen university are to study whether using a breathing test can help prevent asthma attacks in children.
The University of Aberdeen study will use a breath test which monitors their nitric oxide (NO) levels to help guide their treatment.
Funding for the research has been awarded by a partnership of The National Institute for Health Research and Medical Research Council.
A total of 500 children with asthma from 25 centres around the UK will be recruited to the study, half having their treatment guided by their NO levels and half by their symptoms.
At the end of the study, the researchers will compare how many asthma attacks the youngsters have had.