Perhaps you should try some spelling variations:
significantly improved » significantly increased (Expand Search)
significantly teer » significantly better (Expand Search), significantly weaker (Expand Search), significantly lower (Expand Search)
improved decrease » improved urease (Expand Search), marked decrease (Expand Search)
teer decrease » mean decrease (Expand Search), greater decrease (Expand Search)

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

• Removing quotes may allow a broader search: (( significantly teer decrease ) OR ( significantly improved decrease ))~.