Perhaps you should try some spelling variations:
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
lesions decrease » response decrease (Expand search), lesions case (Expand search)
decrease drugs » disease drugs (Expand search), release drugs (Expand search), increase drug (Expand search)
drugs decrease » drugs release (Expand search)
decrease actor » decrease after (Expand search), decreased after (Expand search), decreases motor (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
actor object » action object (Expand search), alter object (Expand search), actor subjects (Expand search)

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease lesions decrease AND decrease ) OR ( decrease drugs decrease actor object ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease lesions decrease and decrease ) OR ( decrease drugs decrease actor object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease lesions decrease and decrease ) OR ( decrease drugs decrease actor object ))*.