Changing a word between parentheses by a reference that I don't want

When I write a word in parentheses, for example (OB), EndNote changes it by a reference: (OB) ------> (Sjostrom). Is there any way to disable that??

I would appreciate any advice on how to stop this. I have EndNote X7.

Thank you!! 

You have changed your endnote temporary citation delimiter (either in Preferences or in the format bibliography dialogue) to plain parentheses rather than curley or square.  – change them back - as Endnote is recognizing any parenthetical contents as an endnote citations and trying to find a match in your library.