University of Utah Researchers (IMAGE) University of Utah Caption University of Utah researchers Marc Porter and Michael Granger with the test station they used to prove the principle that blood, saliva, urine or other fluids placed on a credit card-like sample stick could be tested for disease-related substances with the same technology used to read data on a computer hard drive or listen to tunes on a portable digital music player. Credit Eric Dufek, University of Utah 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.