Any combination of:

• Text, numbers, or special characters

• Emphasis Elements

  • <bold> Bold

  • <fixed-case> Fixed Case

  • <italic> Italic

  • <monospace> Monospace Text (Typewriter Text)

  • <num> ISO Numeric Emphasis

  • <overline> Overline

  • <roman> Roman

  • <ruby> Ruby Wrapper

  • <sans-serif> Sans Serif

  • <sc> Small Caps

  • <strike> Strike Through

  • <underline> Underline

• <journal-id> Journal Identifier in a Related Article

• Inline Display Elements

  • <inline-code> Inline Code

  • <inline-graphic> Inline Graphic

  • <inline-media> Inline Media Object

  • <private-char> Private Character (Custom or Unicode)

• <named-content> Named Special (Subject) Content

• <styled-content> Styled Special (Subject) Content

• <annotation> Annotation (in a citation)

• <article-title> Article Title (in a citation)

• <chapter-title> Chapter Title (in a citation)

• <collab> Collaborative (Group) Author

• <collab-alternatives> Collaboration Alternatives

• <comment> Comment (in a citation)

• <conf-acronym> Conference Acronym (in a citation)

• <conf-date> Conference Date (in a citation)

• <conf-loc> Conference Location (in a citation)

• <conf-name> Conference Name (in a citation)

• <conf-sponsor> Conference Sponsor (in a citation)

• <data-title> Data Title (in a citation)

• <date> Date (in a citation)

• <date-in-citation> Date in Citation (in a citation)

• <day> Day (in a citation)

• <edition> Edition Number

• External Linking Elements

  • <email> Email Address

  • <ext-link> External Link

  • <uri> Uniform Resource Identifier (URI)

• <elocation-id> Electronic Location Identifier (in a citation)

• <etal> Et Al. (in a citation)

• <fpage> First Page (in a citation)

• <gov> Government Report (in a citation)

• <institution> Institution Name

• <institution-wrap> Institution Wrapper

• <isbn> ISBN

• <issn> ISSN (in a citation)

• <issn-l> ISSN-L (Linking ISSN) (in a citation)

• <issue> Issue Number (in a citation)

• <issue-id> Issue Identifier (in a citation)

• <issue-part> Issue Part (in a citation)

• <issue-title> Issue Title (in a citation)

• <lpage> Last Page (in a citation)

• <month> Month (in a citation)

• <name> Name of Person (Structured)

• <name-alternatives> Name Alternatives

• <object-id> Object Identifier

• <page-range> Page Ranges (in a citation)

• <part-title> Part Title (in a citation)

• <patent> Patent Number (in a citation)

• <person-group> Person Group (in a citation)

• <pub-id> Publication Identifier (in a citation)

• <publisher-loc> Publisher’s Location (in a citation)

• <publisher-name> Publisher's Name (in a citation)

• <role> Role or Function Title of Contributor

• <season> Season (in a citation)

• <series> Series (in a citation)

• <size> Size (in a citation)

• <source> Source (in a citation)

• <std> Citation to a Standard

• <string-date> Date as a String

• <string-name> Name of Person (Unstructured)

• <supplement> Supplement (in a citation)

• <trans-source> Translated Source (in a citation)

• <trans-title> Translated Title

• <version> Version Indicator

• <volume> Volume Number (in a citation)

• <volume-id> Volume Identifier (in a citation)

• <volume-series> Volume Series (in a citation)

• <year> Year

• Baseline Change Elements

  • <sub> Subscript

  • <sup> Superscript