Stefan Pulst (IMAGE) University of Utah Health Caption Stefan Pulst, M.D., Dr. med., last author on the study. Credit Charlie Ehlert, University of Utah Health Usage Restrictions Use only with credit. 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.