... See <xref alt="figure 4">Fig IV.</xref>...
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<article dtd-version="1.1d2"> <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"> <mixed-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>. (<year iso-8601-date="1994">1994</year>) <publisher-loc>London</publisher-loc>: <publisher-name>RCP</publisher-name>. </mixed-citation> </ref> <ref id="B2"> <mixed-citation> <collab>National Audit Office</collab>. <source>National health service day hospitals for elderly people in England</source>. (<year iso-8601-date="1994">1994</year>) <publisher-loc>London</publisher-loc>: <publisher-name>HMSO</publisher-name>. </mixed-citation> </ref> ... </ref-list> </back> </article>
... <sec id="sec3"> ... <p>Allocation of tags to individual molecules is outlined in <xref ref-type="fig" rid="F2" alt="figure two">Fig.&#x00A012;2</xref>. First, the complete repertoire of tags in a plasmid library is ligated to the entire population of cDNAs ... After separating loaded microbeads from unloaded microbeads by FACS, as shown in <xref ref-type="fig" rid="F4" alt="figure four">Fig.&#x00A012;4</xref>, the hybridized DNA is ligated to the anti-tag, covalently attaching one strand of the DNA to the microbead's surface. This permits easy removal of the noncovalently attached strand.</p> <fig id="F2">...</fig> <fig id="F3">...</fig> <fig id="F4">...</fig> </sec> ...
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