Perhaps you should try some spelling variations:
"_ ebm decrease" » "_ _ decrease" (Expand Search), "_ ebv decrease" (Expand Search)
"50 ng decrease" » "50 _ decrease" (Expand Search), "10 ng decrease" (Expand Search), "50 μg decrease" (Expand Search)
"_ e decrease" » "_ _ decrease" (Expand Search), "_ _ decreased" (Expand Search), "_ _ decreases" (Expand Search)
"5 a decrease" » "5 _ decrease" (Expand Search), "5 _ decreased" (Expand Search), "5 _ decreases" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("50 ng decrease") OR ((("_ e decrease") OR ("_ ebm decrease"))))) OR ("5 a decrease"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"50 ng decrease\") OR (((\"_ e decrease\") OR (\"_ ebm decrease\"))))) OR (\"5 a decrease\"))".
• Removing quotes may allow a broader search: (((( 50 ng decrease ) OR ((( _ e decrease ) OR ( _ ebm decrease ))))) OR ( 5 a decrease )).
• Adding a wildcard symbol may retrieve word variants: (((("50 ng decrease") OR ((("_ e decrease") OR ("_ ebm decrease"))))) OR ("5 a decrease"))*.