Currently, the “notes” exportation from Mendeley desktop is buggy, with unwanted exported code (they’re working on it, apparently), but this can be deleted quickly with a find-replace function.
The citation style itself is based on the American Antiquity style. You can edit these files using any text editor. The added lines are at the bottom:
<text variable=”abstract” prefix=”ABSTRACT: ” />
and, if you want:
<text variable=”note” prefix=”NOTES: ” />
Click the links above to download the CSL files and save them into your software’s style folder.