SCOOT: Sample Collection for DART

The study will use a blood sample collected from participants to: * Develop new ways of finding and diagnosing lung health problems, such as lung cancer. * Develop tools which make it easier to screen people with possible lung health problems, diagnose problems earlier and with fewer tests, and start the best treatment faster. * Help improve the early diagnosis of lung cancer, as finding lung cancer early means that it can be treated more easily and successfully.