Dr. Dennis Bourdette (IMAGE) Oregon Health & Science University Caption Dr. Dennis Bourdette is the chair of the Department of Neurology in the Oregon Health & Science University (OHSU) School of Medicine and executive director of the Multiple Sclerosis Center at OHSU. Credit Oregon Health & Science 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.