Dr. Roger Yazbek, Flinders University (IMAGE) Flinders University Caption Flinders University researcher Dr. Roger Yazbek is developing breath testing methods for chronic diseases, including celiac and gastrointestinal damage in children. Credit Flinders 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.