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 worst » decrease work (Expand search), decrease or (Expand search), decrease costs (Expand search)
worst pattern » forest patterns (Expand search), point pattern (Expand search), test pattern (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (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 lesions decrease OR decrease ) OR ( decrease to decrease worst pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease lesions decrease OR decrease ) OR ( decrease to decrease worst pattern ))*.