Perhaps you should try some spelling variations:
decrease firing » decrease during (Expand search), decreases during (Expand search), decreased during (Expand search)
decrease cells » decrease cell (Expand search), decreases cell (Expand search), decrease costs (Expand search)
cells decrease » cells decreases (Expand search), cells increase (Expand search), cells increases (Expand search)
firing pattern » firing patterns (Expand search), foraging pattern (Expand search), feeding pattern (Expand search)
decrease that » decrease the (Expand search), decrease at (Expand search), decrees that (Expand search)
that decrease » that increase (Expand search), that increases (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)

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 hiv decrease cells decrease ) OR ( decrease that decrease firing pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease hiv decrease cells decrease ) OR ( decrease that decrease firing pattern ))*.