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 high » decreased high (Expand search), decreases high (Expand search), decrease hiv (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not decrease (Expand search)
high after » higher after (Expand search), high water (Expand search), high titer (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 toc decrease high after ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease lesions decrease OR decrease ) OR ( decrease toc decrease high after ))*.