If there is a specific use-case for this citation, this attribute describes it, for example, if this a data citation, it may state that the data that was “analyzed-data” for this article, rather than generated.

Used on Elements: <element-citation>, <mixed-citation>

Text, numbers, or special characters.There are no fixed value for this attribute, but the current use case is for data citations, to express the difference between generated, analyzed, or referenced data.
Restriction@use-type is an optional attribute; there is no default.

Suggested usage

For use in citing data ( publication-type="data"), there are three potential values:
Included or referenced external data that was generated in the course of the study on which the article reports.
Referenced data that was analyzed in the course of the study on which the article reports, but that was not generated for the study. This may include publicly available datasets.
Referenced data that was neither generated nor analyzed during the study.