Perhaps you should try some spelling variations:
pulmonary prosthesis » pulmonary proteins (Expand search)
decrease pulmonary » decreases pulmonary (Expand search), increased pulmonary (Expand search), increases pulmonary (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (Expand search)
the decrease » to decrease (Expand search), and decrease (Expand search)
decrease il » decreased il (Expand search), decrease in (Expand search), decrease hiv (Expand search)
il decrease » l decrease (Expand search), will decrease (Expand search), oil decreases (Expand search)
or decrease » not decrease (Expand search), to decrease (Expand search), _ decrease (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (Expand search)

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease il decrease pulmonary prosthesis ) OR ( decrease the decrease OR decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease il decrease pulmonary prosthesis ) OR ( decrease the decrease or decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease il decrease pulmonary prosthesis ) OR ( decrease the decrease or decrease ))*.