This is an example of our current data linking markup. Data links are inline to the text through a parenthetical anchored link to the DOI resource.
There is a bug in the current version of the article. Our formal practice is to include this in the "Article Data" tab, which didn't happen this time. We will have to do some more work standardizing our production practices. We are also still thinking about how best to markup the anchored text.
We have not yet adopted a formal XML schema for including data links. We are working on this, which may be made easier when we adopt the most recent JATS schema.