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 burden » disease burden (Expand search), decrease further (Expand search)
burden process » burning process (Expand search), green process (Expand search), maden process (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not increase » and increase (Expand search), an increase (Expand search)
increase pro » increased pro (Expand search), increase crop (Expand search), increase ceo (Expand search)
pro decrease » to decrease (Expand search), or decrease (Expand search), price 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 lesions decrease burden process ) OR ( decrease NOT increase pro decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease lesions decrease burden process ) OR ( decrease not increase pro decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease lesions decrease burden process ) OR ( decrease not increase pro decrease ))*.