Assertion: multiple sclerosis's symptom | /r/RelatedTo | brainstem dysfunction
Facets:
Source sentences:
text: The condition begins in 85% of cases as a clinically isolated syndrome (CIS) over a number of days with 45% having motor or sensory problems, 20% having optic neuritis, and 10% having symptoms related to brainstem dysfunction, while the remaining 25% have more than one of the previous difficulties.