Perhaps you should try some spelling variations:
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decreases over » decreases liver (Expand search), decreasing over (Expand search), decreases bone (Expand search)
decrease treg » decrease the (Expand search), increase treg (Expand search), decrease their (Expand search)
treg decrease » the decrease (Expand search), urea decrease (Expand search), drugs decrease (Expand search)
or decreases » or decrease (Expand search), oic decreases (Expand search), oil decreases (Expand search)
over pattern » cover pattern (Expand search), cover patterns (Expand search), novel pattern (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (Expand search)

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease treg decrease during decrease ) OR ( decrease OR decreases over pattern ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease treg decrease during decrease ) OR ( decrease or decreases over pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease treg decrease during decrease ) OR ( decrease or decreases over pattern ))*.