Perhaps you should try some spelling variations:
treg decreased » are decreased (Expand search), the decreased (Expand search), to decreased (Expand search)
decrease treg » increase treg (Expand search), decrease their (Expand search)
decreased to » decreased the (Expand search), decreased tgf (Expand search), decreased in (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (Expand search)
the decrease » and decrease (Expand search)
decrease it » decrease its (Expand search), decrease in (Expand search), decrease at (Expand search)
it based » iot based (Expand search), unit based (Expand search), diet based (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 decreased to decrease ) OR ( decrease the decrease it based ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease treg decreased to decrease ) OR ( decrease the decrease it based ))*.