Qihong Huang, The Wistar Institute (IMAGE) The Wistar Institute Caption Dr. Huang of The Wistar Institute recently discovered a new biomarker that could be used to detect lung cancer earlier with a blood test. Credit The Wistar 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.