Reference to an Identifier

Value of the identifier of an associated element; used for linking related elements (for example, <term> to a <def>, <bio> to a <contrib>).

Used on these Elements:

One or more identifiers (IDREFS)Points to one or more existing identifiers.
Restriction@rid is an optional attribute; there is no default.


<p>Allocation of tags to individual molecules is outlined in
<xref ref-type="fig" rid="F2" alt="figure two">Fig.&#x00A0;2</xref>.
First, the complete repertoire of tags ...</p>
<fig id="F2">...</fig>