Perhaps you should try some spelling variations:
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
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 limb » decrease lipid (Expand search), decrease liver (Expand search), decrease in (Expand search)
limb decrease » will decrease (Expand search)
decrease with » decreases with (Expand search), increase with (Expand search), decrease in (Expand search)
with decrease » with decreased (Expand search), with deceased (Expand search), with increase (Expand search)
during open » using open (Expand search), during one (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 limb decrease ) OR ( decrease with decrease during open ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease treg decrease limb decrease ) OR ( decrease with decrease during open ))*.