Perhaps you should try some spelling variations:
lesions decrease » response decrease (Expand search), lesions case (Expand search)
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
decrease mask » decrease risk (Expand search), decrease milk (Expand search), decreased base (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (Expand search)
mask object » mass objects (Expand search), dark object (Expand search), based object (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 in decrease ) OR ( decrease lesions decrease mask object ))~.