Perhaps you should try some spelling variations:
decreased risk » increased risk (Expand search), decreased in (Expand search)
term decreased » term decrease (Expand search), to decreased (Expand search), are decreased (Expand search)
decrease treg » increase treg (Expand search), decrease their (Expand search)
treg decrease » urea decrease (Expand search), drugs decrease (Expand search), break decrease (Expand search)
decrease term » decreased sperm (Expand search), decreases sperm (Expand search), decrease theory (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (Expand search)
the decrease » to decrease (Expand search), and decrease (Expand search)
risk object » disk object (Expand search), mask object (Expand search), task object (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 the decrease treg decrease ) OR ( decrease term decreased risk object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease the decrease treg decrease ) OR ( decrease term decreased risk object ))*.