Perhaps you should try some spelling variations:
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
lesions decrease » response decrease (Expand search), lesions case (Expand search)
decrease birth » decrease with (Expand search), decrease its (Expand search), decrease high (Expand search)
birth process » death process (Expand search)
decrease not » decrease akt (Expand search), decrease at (Expand search), decrease on (Expand search)
not decrease » to decrease (Expand search), not increase (Expand search), and decrease (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), to decrease (Expand search), _ 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 of decrease birth process ) OR ( decrease lesions decrease NOT decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease of decrease birth process ) OR ( decrease lesions decrease not decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease of decrease birth process ) OR ( decrease lesions decrease not decrease ))*.