Introduction
Introduction
These Tagging Guidelines describe PubMed Central's preferred XML tagging style for journal article submissions in the NLM Journal Publishing DTD. Users of this document should have an understanding of XML and a basic familiarity with the NLM Journal Publishing DTD.
The Tagging Guidelines are described in three separate sections. Each section describes separate rules that must be followed when creating PMC-style compliant XML. Many of the rules are related, but none are duplicated from one section to another.
In addition to these three sections, all updates to the Tagging Guidelines are documented in the Update History.
These style rules apply to structured data tagging at a very broad level and include formatted text, math, and special characters.
This section describes specific parts of XML documents like figures and author/affiliation relationships. It references specific elements and includes examples of XML tagging.
This section describes style rules for specific XML elements and their attributes. Only elements for which PMC has a style rule are described in this section. Refer to the Tag Library for descriptions of all elements available in the DTD.
Occasionally the Tagging Guidelines and the Tag Library have different tagging instructions or examples. In those cases, tag submissions to PMC according to the examples in the Tagging Guidelines which always describe PMC’s preferred style.
PMC has provided the following tools and resources for use with the Tagging Guidelines.
This web-based tool provides a detailed report of all items in an XML file that do not comply with PMC style. The report will list items as either warnings or errors.
The Style Checker is also available for download as a set of XSL stylesheets. The downloadable version has the same functionality as the web-based version but it can be run locally. If you are unfamiliar with running XSL stylesheets against XML data, please use the web-based version.
Fully-tagged articles in compressed format are available for download here. These same articles are available as formatted text files for browser viewing.
These articles have been adapted from the version in the PMC archive for tagging illustrations only. The full citation of the original article is included at the top of each article.
This page shows reference citations tagged in the NLM format and complying with PMC style. The examples are all tagged using the <nlm-citation> element, but PMC style does allow use of the <citation> element as well.