Perhaps you should try some spelling variations:
decrease survival » decreased survival (Expand search), decreases survival (Expand search), increase survival (Expand search)
survival panels » survival models (Expand search), survival genes (Expand search), survival games (Expand search)
decrease limb » decrease lipid (Expand search), decrease liver (Expand search), decrease hiv (Expand search)
limb decrease » will decrease (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (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 in decrease limb decrease ) OR ( decrease to decrease survival panels ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decrease limb decrease ) OR ( decrease to decrease survival panels ))*.