Perhaps you should try some spelling variations:
their decrease » the decrease (Expand search), their disease (Expand search), the decreased (Expand search)
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
decrease treg » decrease the (Expand search)
treg decrease » the decrease (Expand search), urea decrease (Expand search), drugs decrease (Expand search)
decrease task » decrease risk (Expand search), decreased base (Expand search), decrease the (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (Expand search)
task object » mask object (Expand search), dark object (Expand search), disk 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 in decrease treg decrease ) OR ( decrease their decrease task object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decrease treg decrease ) OR ( decrease their decrease task object ))*.