Elena Verdu, McMaster University (IMAGE) McMaster University Caption lead researcher of the study and a professor of medicine at McMaster's Farncombe Family Digestive Health Research Institute Credit McMaster University Usage Restrictions To be used when reporting on this research 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.