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 matter » decrease after (Expand search), decrease litter (Expand search), decrease catheter (Expand search)
decrease flow » decreases flow (Expand search), decrease low (Expand search), decrease food (Expand search)
flow decrease » flow increase (Expand search), to decrease (Expand search), not 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 flow decrease lesions decrease ) OR ( decrease AND decrease matter wave ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease flow decrease lesions decrease ) OR ( decrease AND decrease matter wave ))*.