Perhaps you should try some spelling variations:
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
lesions increase » lesions decrease (Expand search), neurons increases (Expand search), levels increase (Expand search)
increase risk » increased risk (Expand search)
decrease can » decrease in (Expand search), decrease and (Expand search), decrease at (Expand search)
can decrease » can increase (Expand search), and decrease (Expand search), to decrease (Expand search)
risk objects » risk subjects (Expand search), disk object (Expand search), first objects (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( decrease AND decrease can decrease ) OR ( decrease lesions increase risk objects ))~.