Perhaps you should try some spelling variations:
lesions decrease » response decrease (Expand search), lesions case (Expand search)
disease lesions » disease lessons (Expand search), diseases lessons (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search)
risk objects » risk subjects (Expand search), disk object (Expand search), first objects (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to decrease (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease the disease lesions decrease ) OR ( decrease of decrease risk objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease the disease lesions decrease ) OR ( decrease of decrease risk objects ))*.