Perhaps you should try some spelling variations:
decrease lesion » decrease adhesion (Expand search), decrease asian (Expand search), decrease soon (Expand search)
decrease stent » decreased pten (Expand search), decrease std (Expand search), decrease soon (Expand search)
stent decrease » strength decrease (Expand search), events decrease (Expand search), term decrease (Expand search)
lesion pattern » lesions pattern (Expand search), lesion patterns (Expand search), design pattern (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 β » decrease _ (Expand search), decrease in (Expand search), decrease of (Expand search)
β decrease » _ decrease (Expand search), α decrease (Expand search), l decrease (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 β decrease stent decrease ) OR ( decrease AND decrease lesion pattern ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease β decrease stent decrease ) OR ( decrease and decrease lesion pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease β decrease stent decrease ) OR ( decrease and decrease lesion pattern ))*.