<article-categories>¶

Appears in	Frequency
<article-meta>	Zero or more times

Identifies the classification of the article according to the section in which it appears in the journal table of contents of an issue.

Examples:

One level categorie:

Two levels categorie:

Tree levels categorie:

Note

There are no restrictions to create sub categories, but it is a best practice to not exceed 3 levels while defining the categories of the article in an issue.

One level categorie:¶

...
<article-meta>
  ...
  <article-categories>
    <subj-group>
      <subject>Original Article</subject>
    </subj-group>
  </article-categories>
  ...
</article-meta>
...

Two levels categorie:¶

...
<article-meta>
  ...
  <article-categories>
    <subj-group>
      <subject>Original Article</subject>
      <subj-group>
        <subject>Level 2</subject>
      </subj-group>
    </subj-group>
  </article-categories>
  ...
</article-meta>
...

Tree levels categorie:¶

...
<article-meta>
  ...
  <article-categories>
    <subj-group>
      <subject>Original Article</subject>
      <subj-group>
        <subject>Level 2</subject>
        <subj-group>
          <subject>Level 3</subject>
        </subj-group>
      </subj-group>
    </subj-group>
  </article-categories>
  ...
</article-meta>
...