Perhaps you should try some spelling variations:
airway processing » array processing (Expand search), dairy processing (Expand search), air processing (Expand search)
decreases airway » increased airway (Expand search), decreases aortic (Expand search), reverses airway (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)
to decreases » to decrease (Expand search), to decreased (Expand search), co2 decreases (Expand search)
decrease may » decrease at (Expand search), decrease by (Expand search), decrease human (Expand search)
may decrease » may increase (Expand search), can decrease (Expand search), to 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.

• Removing quotes may allow a broader search: (( decrease to decreases airway processing ) OR ( decrease during decrease may decrease ))~.