Perhaps you should try some spelling variations:
decrease antigen » release antigen (Expand search), decrease nitrogen (Expand search), decreases mitogen (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decreased rate » increased rate (Expand search), decreased base (Expand search), decreased native (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), and 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: "(( decreased rate decrease antigen presenting ) OR ( decrease during decrease to decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decreased rate decrease antigen presenting ) OR ( decrease during decrease to decrease ))*.