Perhaps you should try some spelling variations:
decrease based » decreased base (Expand search), decrease blood (Expand search)
based pattern » based plasters (Expand search), mapped pattern (Expand search), and pattern (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not decrease (Expand search)
decrease hiv » decrease in (Expand search), decrease their (Expand search), decreased high (Expand search)
hiv decrease » via decrease (Expand search), hiv increase (Expand search), will decrease (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)

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 toc decrease hiv decrease ) OR ( decrease can decrease based pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease toc decrease hiv decrease ) OR ( decrease can decrease based pattern ))*.