Perhaps you should try some spelling variations:
decrease firing » decrease during (Expand search), decreases during (Expand search), decreased during (Expand search)
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
their decrease » the decrease (Expand search), their disease (Expand search), the decreased (Expand search)
firing pattern » firing patterns (Expand search), foraging pattern (Expand search), feeding pattern (Expand search)
decrease pain » decreases pain (Expand search), decrease in (Expand search), decreased brain (Expand search)
pain decrease » can decrease (Expand search), taping decrease (Expand search), brain decreases (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( decrease AND decrease pain decrease ) OR ( decrease their decrease firing pattern ))~.