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 fetal » decrease fear (Expand search), decrease renal (Expand search), decrease total (Expand search)
fetal effects » lethal effects (Expand search), dental effects (Expand search), legal effects (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)
decrease on » decrease in (Expand search), decrease of (Expand search), decrease or (Expand search)
on decrease » on decreased (Expand search), or decrease (Expand search), of 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 lesions decrease on decrease ) OR ( decrease toc decrease fetal effects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease lesions decrease on decrease ) OR ( decrease toc decrease fetal effects ))*.