Jason Busse (IMAGE) McMaster University Caption Jason Busse, lead author of the study and a researcher with the Michael G. DeGroote Institute for Pain Research and Care at McMaster University. Credit Photo courtesy McMaster University 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.