Perhaps you should try some spelling variations:
decrease relapsing » decrease replacing (Expand search)
faster decrease » rate decrease (Expand search)
decrease faster » decrease after (Expand search), decrease further (Expand search), decreased after (Expand search)
relapsing after » relapsing fever (Expand search), relapse after (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (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 and decrease to decrease ) OR ( decrease faster decrease relapsing after ))~.