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 therapy » desease therapy (Expand search), disease therapy (Expand search), release therapy (Expand search)
therapy matters » therapy alters (Expand search), therapy after (Expand search), therapy lasers (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not decrease » to decrease (Expand search), not increase (Expand search), and decrease (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 AND decrease lesions decrease ) OR ( decrease NOT decrease therapy matters ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease AND decrease lesions decrease ) OR ( decrease not decrease therapy matters ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease AND decrease lesions decrease ) OR ( decrease not decrease therapy matters ))*.