Perhaps you should try some spelling variations:
decreases during » decrease during (Expand search), increases during (Expand search), decreases lung (Expand search)
toc decreases » c decreases (Expand search), oic decreases (Expand search), co2 decreases (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)
decrease toc » decrease the (Expand search), decreased to (Expand search), decrease on (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to decrease (Expand search)
during bed » during bud (Expand search), during bread (Expand search), during beef (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 of decrease ) OR ( decrease toc decreases during bed ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease hiv decrease of decrease ) OR ( decrease toc decreases during bed ))*.