Perhaps you should try some spelling variations:
"significantly elevated decrease" » "significantly greater decrease" (Expand Search), "significantly correlated decrease" (Expand Search), "significantly decreased decrease" (Expand Search), "significantly elevated depressive" (Expand Search), "significantly estimated decrease" (Expand Search)
"significantly altered decrease" » "significantly affected decrease" (Expand Search), "significantly lower decrease" (Expand Search), "significantly reduced decrease" (Expand Search), "significantly altered release" (Expand Search), "significantly observed decrease" (Expand Search), "significantly teer decrease" (Expand Search)

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

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