Add Yahoo as a preferred source to see more of our stories on Google. FILE PHOTO: A blood sample is held in Birmingham, Britain June 5, 2020. Simon Dawson/Pool via REUTERS March 18 (Reuters) - A new ...

Scientists have made a "significant step" towards creating a blood test that detects brain tumours and monitors them in real time. The new test is more than 90% accurate and could be used by GPs to ...