Dr. Joshua Denson (IMAGE) Tulane University Caption Lead author Dr. Joshua Denson, pulmonary and critical care medicine physician and assistant professor of medicine at Tulane University School of Medicine. Credit Tulane University Usage Restrictions For use in coverage related to research study. 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.