This transcript has been edited for clarity. For more episodes, download the Medscape app or subscribe to the podcast on Apple Podcasts, Spotify, or your preferred podcast provider. Anne H. Cross, MD: Hello. I'm Anne Cross, professor of Neurology at Washington University, and I'm here to welcome you to Medscape’s InDiscussion series on multiple sclerosis (MS). Today, we will be discussing fluid biomarkers and MS with Dr Mark Freedman.