List of Abbreviations Used

I have produced a bibliography which uses abbreviations for all the journal titles, but I am required to produce a separate list of all the abbreviations which I have used together with their full title. Is there a way of automating this in Endnote? I really do not fancy trawling through a few hundred items and doing it manually.

Thanks

I am using X4.

Listing the abbreviations which have been used for journals, book series and primary sources is actually quite common in the humanities. I was hoping that there was an automated feature in Endnote which could retrieve the items which had been cited in a word document from the journal term list, but your ideas of experimenting with alternative bibliographies is a helpful one. I will experiment, still sounds like a lot of work though.