Perhaps you should try some spelling variations:
reveals patterns » reveals altered (Expand search)
decrease reveals » disease reveals (Expand search), decreased levels (Expand search), decreases levels (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 low » decreases low (Expand search), decreases flow (Expand search), decrease of (Expand search)
low decrease » flow decrease (Expand search), loss decrease (Expand search), not decrease (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 hiv decrease low decrease ) OR ( decrease to decrease reveals patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease hiv decrease low decrease ) OR ( decrease to decrease reveals patterns ))*.