related-article-type Type of Related Article

Type of article being described by the <related-article> element or type of relationship the article being described by the <related-article> has to the current article (for example, “companion-article” means the related article is a companion to the current article, “corrected-article means the related article corrects the current article”, or “preprint” could be used to point from the version of record to an earlier related preprint).


The <related-article> element describes (and may point to) another article that bears some relationship to this XML-tagged article. This attribute describes (names the type of) relationship between the current article and the target related article, the one to which this element points. This is an outward facing link that may describe the type of target article or the type of relationship to the current article.
REQUIRED on element: <related-article>
Value Meaning
Text, numbers, or special characters The article type for the related article, for example, “addendum”.
Restriction @related-article-type is required; it must be provided if the element is used.

Suggested usage

Potential values for this attribute describe how the related article is related. As an example, the “addendum” value means that the article being pointed to is an addendum to the current article, not that the related-article is necessarily of type “addendum”.
The related article contains additional material for this article, which, for example, was generated too late to be added to the main article text.
Used in an article to name an associated commentary, opinion, or editorial
Used in a commentary, opinion, or editorial to name the article on which this one is commenting
Used in an article to name a companion (related or sibling) article
Used in a correction article to name the article being corrected. Sometimes called “erratum”.
Used in an article to name (point forward to) its associated correction (rarely used)
Used in an article to name a related article from the same journal issue
Used in an article to name a letter to the publication or a reply to such a letter that concerns the article
Used in an article to describe and point to a retraction or disavowal of part(s) of the published article
Used in a version-of-record or published article to name one of its preprints
Used in a retraction to name the article being retracted
Used in an article to name (forward) its associated retraction (rare)
Used in any article that is not the current version-of-record to name the current version-of-record for which the current article is a different version, for example, a “preprint” manuscript could point to the published article.
Tagged Sample

A related article that is a Companion to this article

<related-article related-article-type="companion" vol="2" page="e359"
  xlink:title="synopsis" xlink:href="10.1371/journal.pbio.0020359">
 <article-title>How to Make a Mother in Five Easy Steps</article-title>