Perhaps you should try some spelling variations:
caries affected » are affected (Expand search), patients affected (Expand search)
decrease caries » decreased cardiac (Expand search), decreases cardiac (Expand search), decreased calorie (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), the decrease (Expand search)
decrease akt » decrease at (Expand search), decrease and (Expand search), decrease after (Expand search)
akt decrease » and decrease (Expand search), not decrease (Expand search), any decrease (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (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 can decrease to decrease ) OR ( decrease akt decrease caries affected ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease can decrease to decrease ) OR ( decrease akt decrease caries affected ))*.