Perhaps you should try some spelling variations:
method affects » method effects (Expand search), methods affect (Expand search), method effect (Expand search)
decrease treg » decrease their (Expand search)
treg decrease » urea decrease (Expand search), drugs decrease (Expand search), break decrease (Expand search)
decrease loss » decrease costs (Expand search), decrease low (Expand search), decrease blood (Expand search)
loss decrease » loss decreases (Expand search), cross decreased (Expand search), to decrease (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)

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 loss decrease method affects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease the decrease treg decrease ) OR ( decrease loss decrease method affects ))*.