Perhaps you should try some spelling variations:
lesions decrease » response decrease (Expand search), lesions case (Expand search)
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
decrease litter » increased litter (Expand search), decrease after (Expand search), decreases liver (Expand search)
litter decrease » faster decrease (Expand search), life decrease (Expand search)
in processed » and processed (Expand search), in process (Expand search), of processed (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 litter decrease in processed ) OR ( decrease lesions decrease to decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease litter decrease in processed ) OR ( decrease lesions decrease to decrease ))*.