Helen Tremlett (IMAGE) University of British Columbia Caption This is Helen Tremlett, the study's senior author and professor in the division of neurology at UBC and the Canada Research Chair in neuroepidemiology and multiple sclerosis. Credit University of British Columbia 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.