Perhaps you should try some spelling variations:
decrease response » decreased response (Expand search), increases response (Expand search), increased response (Expand search)
response decrease » response defense (Expand search)
decrease ictal » decrease fetal (Expand search), decrease total (Expand search), decreases rectal (Expand search)
ictal pattern » ictal patterns (Expand search), fractal pattern (Expand search), digital pattern (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 to decrease response decrease ) OR ( decrease AND decrease ictal pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease to decrease response decrease ) OR ( decrease AND decrease ictal pattern ))*.