Perhaps you should try some spelling variations:
decrease treg » decrease the (Expand search), decrease their (Expand search)
treg decrease » the decrease (Expand search), urea decrease (Expand search), drugs decrease (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 with » decreases with (Expand search), increase with (Expand search), decrease in (Expand search)
decrease can » decrease in (Expand search), decrease and (Expand search), decrease at (Expand search)
can decrease » and decrease (Expand search), can increase (Expand search), to decrease (Expand search)
with pattern » with patterns (Expand search), with patterned (Expand search), pitch pattern (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 treg decrease rate decrease ) OR ( decrease can decrease with pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease treg decrease rate decrease ) OR ( decrease can decrease with pattern ))*.