Louise Sun, University of Ottawa (IMAGE) University of Ottawa Heart Institute Caption Dr. Louise Sun, the study's principal investigator, is a staff anesthesiologist at the University of Ottawa Heart Institute and an Assistant Professor at the Department of Anesthesiology and School of Epidemiology, Public Health and Preventative Medicine, at the University of Ottawa. Credit University of Ottawa Heart 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.