Perhaps you should try some spelling variations:
decrease burden » disease burden (Expand search), decrease further (Expand search)
burden decrease » burden disease (Expand search), urea decrease (Expand search), burgers decreases (Expand search)
decrease lesion » decrease adhesion (Expand search), decrease asian (Expand search), decrease soon (Expand search)
lesion patterns » lesion pattern (Expand search), design patterns (Expand search), lesions pattern (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)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc decrease » to decrease (Expand search), the 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 burden decrease flow decrease ) OR ( decrease toc decrease lesion patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease burden decrease flow decrease ) OR ( decrease toc decrease lesion patterns ))*.