Assertion: multiple sclerosis | /r/AtLocation | temperate regions
Facets:
value: due to the seasonal fluctuations in daylight
type: CAUSE
Source sentences:
text: Multiple sclerosis (MS) has a worldwide distribution but is five times more common in temperate regions than in tropical regions.
text: Some researchers suggest that multiple sclerosis is common in temperate regions due to the seasonal fluctuations in daylight affecting body chemistry.