What is FLA in the Elsevier manuscript submission checklist? Elsevier Clinical Biomechanics journal requires the submission of a mandatory checklist along with the manuscript. One of its entries include the following.


  The section heading 'Introduction' should be used for all FLAs.


What is FLA in this context?
In Elsevier nomenclature, FLA is an "article doc subtype" acronym for "Full length article". Other article type acronyms include BRV for book reviews, NWS for news, PGL for practice guideline, and so on.

The checklist requires you to have a section labelled "Introduction" for a full length article. For other article types, this is not required.

I hope this helps.