Perhaps you should try some spelling variations:
decrease swallowing » disease swallowing (Expand search), decrease following (Expand search), decrease walking (Expand search)
swallowing events » swallowing sounds (Expand search)
at decreased » rats decreased (Expand search), and decreased (Expand search), are decreased (Expand search)
decreased il » decreased in (Expand search), increased il (Expand search), decreased by (Expand search)
decrease at » decrease akt (Expand search), decrease and (Expand search), decrease in (Expand search)
il decrease » l decrease (Expand search), will decrease (Expand search), oil decreases (Expand search)
decrease by » decreased by (Expand search), decrease in (Expand search), decrease of (Expand search)
by decrease » by decreased (Expand search), may decrease (Expand search), any 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 at decreased il decrease ) OR ( decrease by decrease swallowing events ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease at decreased il decrease ) OR ( decrease by decrease swallowing events ))*.