Within a bibliographic reference (<citation> or <nlm-citation>), the <source> is the title of a journal, book, conference proceedings, etc., that contains (is the source of) the material which is being cited.
For extensive examples of formatted <nlm-citation>s including use of <source>s in <nlm-citation>s, see: Sample PubMed Central Citations. To see tagged versions of these examples, see: Sample PubMed Central Citations - XML Tagged.
<!ELEMENT source (#PCDATA %source-elements;)* >
Any combination of:
<citation> Citation; <nlm-citation> NLM Citation Model; <product> Product Information; <related-article> Related Article Information
Title of a book in a bibliographic reference (punctuation and spacing removed):
...
<back>
...
<ref-list>
<ref id="B1">
<label>1</label>
<citation>
<collab>Research Unit of the Royal
College of Physicians and British Geriatric Society</collab>
<source>Geriatric day hospitals: their role
and guidelines for good practice</source>
<publisher-loc>London</publisher-loc>
<publisher-name>RCP</publisher-name>
<year>1994</year>
</citation>
</ref>
...
</ref-list>
...
</back>
...
Title of a book in a bibliographic reference (punctuation and spacing preserved):
...
<back>
...
<ref-list>
<ref id="B1">
<label>1</label>
<citation>
<collab>Research Unit of the Royal
College of Physicians and British Geriatric Society</collab>.
<source>Geriatric day hospitals: their role
and guidelines for good practice</source>.
<publisher-loc>London</publisher-loc>:
<publisher-name>RCP</publisher-name>;
<year>1994</year>.
</citation>
</ref>
...
</ref-list>
...
</back>
...
Title of a journal in a bibliographic reference (punctuation and spacing removed):
...
<back>
...
<ref-list>
...
<ref id="B8"><label>8</label>
<citation>
<person-group>
<name><surname>Weissert</surname>
<given-names>W</given-names></name>
<name><surname>Wan</surname>
<given-names>T</given-names></name>
<name><surname>Livieratos</surname>
<given-names>B</given-names></name>
<name><surname>Katz</surname>
<given-names>S</given-names></name>
</person-group>
<article-title>Effects and costs of day-care
services for the chronically ill: a randomized
experiment</article-title>
<source>Medical Care</source>
<year>1980</year>
<volume>18</volume>
<fpage>567</fpage>
<lpage>584</lpage>
<pub-id pub-id-type="pmid">6772889</pub-id>
</citation>
</ref>
...
</ref-list>
</back>
...
Title of a journal in a bibliographic reference (punctuation and spacing preserved):
...
<back>
...
<ref-list>
...
<ref id="B8"><label>8</label>
<citation>
<name><surname>Weissert</surname>
<given-names>W</given-names></name>,
<name><surname>Wan</surname>
<given-names>T</given-names></name>,
<name><surname>Livieratos</surname>
<given-names>B</given-names></name>,
<name><surname>Katz</surname>
<given-names>S</given-names></name>.
<article-title>Effects and costs of day-care
services for the chronically ill: a randomized
experiment</article-title>.
<source>Medical Care</source>
<year>1980</year>;
<volume>18</volume>:
<fpage>567</fpage>–
<lpage>584</lpage>.
<pub-id pub-id-type="pmid">6772889</pub-id>.
</citation>
</ref>
...
</ref-list>
</back>
...
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