Remarks

There must be at least one article identifier and there may be several, potential candidates include:

• apaid (APA article identifier)
• doi (Digital Object Identifier)
• pi-uid (PsycINFO Unique Identifier)

apaid. The APA article identifier is constructed as follows:

• Three-letter journal abbreviation
• Underscore character
• Volume number
• Underscore character
• Issue number
• Underscore character
• First page number
• Underscore character
• Lowercase alpha letter (optional; used to distinguish multiple articles starting on the same page)

For example, for Psychological Review, Volume 104, Issue 1, article beginning on page 3, the <article-id> should be “rev_104_1_3”.

Similarly, American Psychologist, Volume 53, Issue 4, two articles beginning on page 103, the <article-id>s should be “amp_53_4_103_a” for the first and article and “amp_53_4_103_b” for the second article.

...
<front>
<journal-meta>...</journal-meta>
<article-meta>
<article-id pub-id-type="apaID">pst_45_3_281</article-id>
<article-id pub-id-type="doi">10.1037/a0013305</article-id>
<article-id pub-id-type="pi-uid">2008-13167-001</article-id>
<article-categories>
<subj-group subj-group-type="toc-heading">
<subject>Regular Articles</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>THERAPIST IMMEDIACY IN BRIEF PSYCHOTHERAPY: CASE STUDY I</article-title>
</title-group>
<contrib-group>...</contrib-group>
...
<pub-date pub-type="online">
<string-date><month number="7">July</month> <day>7</day>, <year>2008</year></string-date>
</pub-date>
<pub-date pub-type="print">
<string-date><month number="9">September</month> <year>2008</year></string-date>
</pub-date>
<volume>45</volume>
<issue>3</issue>
<fpage>281</fpage>
<lpage>297</lpage>
<permissions copyright-status="active">...</permissions>
<abstract xml:lang="en">...</abstract>
<kwd-group xml:lang="en">...</kwd-group>
</article-meta>
</front>
...