Perhaps you should try some spelling variations:
in prospective » and prospective (Expand search), _ prospective (Expand search), in perspective (Expand search)
risk decreases » diet decreases (Expand search), life decreases (Expand search), oic decreases (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease with (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)

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 rate decrease risk decreases ) OR ( decrease toc decrease in prospective ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease rate decrease risk decreases ) OR ( decrease toc decrease in prospective ))*.