Perhaps you should try some spelling variations:
decrease survival » decreased survival (Expand search), increase survival (Expand search), increases survival (Expand search)
survival pattern » survival patterns (Expand search), survival after (Expand search), survival protein (Expand search)
pain decreased » pain decrease (Expand search), in decreased (Expand search), brain decreases (Expand search)
decrease pain » decreases pain (Expand search), decrease in (Expand search), decreased brain (Expand search)
decreased to » decreased the (Expand search), decreased tgf (Expand search), decreased in (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decrease or (Expand search)
toc decrease » the decrease (Expand search), not decrease (Expand search), of 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 pain decreased to decrease ) OR ( decrease toc decrease survival pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease pain decreased to decrease ) OR ( decrease toc decrease survival pattern ))*.