Perhaps you should try some spelling variations:
decrease imaging » decrease lodging (Expand search), disease imaging (Expand search), decreases weaning (Expand search)
decrease theory » decrease their (Expand search), decrease the (Expand search), decreased memory (Expand search)
theory decrease » the decrease (Expand search), therapy decreases (Expand search), memory decreases (Expand search)
imaging pattern » imaging patterns (Expand search), foraging pattern (Expand search), eating pattern (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
risk decrease » risk decreases (Expand search), risk increase (Expand search), break 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 NOT decrease theory decrease ) OR ( decrease risk decrease imaging pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease NOT decrease theory decrease ) OR ( decrease risk decrease imaging pattern ))*.