velculesco (IMAGE) Johns Hopkins Medicine Caption Illustration representing the DNA Evaluation of Fragments for Early Interception (DELFI) approach for lung cancer detection through non-invasive assessment of cell-free DNA fragmentation profiles. Credit Cancer Discovery Usage Restrictions N/A License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.