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 ictal » decrease fetal (Expand search), decrease total (Expand search), decreases rectal (Expand search)
ictal patterns » visual patterns (Expand search), facial patterns (Expand search), social patterns (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)
decrease on » decrease in (Expand search), decrease of (Expand search), decrease or (Expand search)
on decrease » on decreased (Expand search), or decrease (Expand search), of 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 on decrease lesions decrease ) OR ( decrease NOT decrease ictal patterns ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease on decrease lesions decrease ) OR ( decrease not decrease ictal patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease on decrease lesions decrease ) OR ( decrease not decrease ictal patterns ))*.