One item in a bibliographic list (typically a citation describing a referenced work although some journals may place notes, as well as citations, in a bibliographic list)
Conversion Note: There is usually a number or other label preceding each citation, for example [Lapeyre 2004], which a tagger may choose to preserve using the <label> element.
<!ELEMENT ref %ref-model; >
The following, in order:
<article> <front> ... </front> <body>... <p>Geriatric day hospitals developed rapidly in the United Kingdom in the 1960s as an important component of care provision. ... Although there is considerable descriptive literature on day hospital care,<xref ref-type="bibr" rid="B1">1</xref> concern has been expressed that evidence for effectiveness is equivocal and that day hospital care is expensive.<xref ref-type="bibr" rid="B2">2</xref> ...</p>... </body> <back>... <ref-list> <ref id="B1"><label>1</label> <citation citation-type="book"> <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> <year>1994</year> <publisher-name>RCP</publisher-name> <publisher-loc>London</publisher-loc>. </citation> </ref> <ref id="B2">...</ref> ... </ref-list>... </back> </article>