Chronic Obstructive Pulmonary Disease (IMAGE) American Chemical Society Caption Researchers have identified a "biomarker" that could lead to early detection of chronic obstructive pulmonary disease. Credit National Heart Lung and Blood Institute Usage Restrictions None License Licensed 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.