Marjan Walli-Attaei (IMAGE) McMaster University Caption Marjan Walli-Attaei, PhD, Population Health Research Institute at McMaster University and Hamilton Health Sciences, Hamilton, Canada. Credit Population Health Research Institute 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.