Perhaps you should try some spelling variations:
pulmonary abscesses » pulmonary abscess (Expand search), pulmonary diseases (Expand search), pulmonary assessments (Expand search)
decrease pulmonary » decreases pulmonary (Expand search), increased pulmonary (Expand search), disease pulmonary (Expand search)
decrease decrease » decrease release (Expand search), disease decreases (Expand search), decreases disease (Expand search)
decrease after » increase after (Expand search), disease after (Expand search)
decrease can » decrease in (Expand search), decrease and (Expand search), decrease at (Expand search)
can decrease » and decrease (Expand search), can increase (Expand search), to 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 _ decrease pulmonary abscesses ) OR ( decrease can decrease decrease after ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease _ decrease pulmonary abscesses ) OR ( decrease can decrease decrease after ))*.