Short code or abbreviation used as an identifier for a journal.
There may be more than one such identifier, with the type of identifier named by the @journal-id-type attribute. For example, one identifier may be a registered DOI, another a control number assigned by the publisher, and another the journal abbreviation assigned by PubMed Central.
<!ELEMENT journal-id (#PCDATA) >
Text, numbers, or special characters
This element may be contained in:
No sample is available at this time.