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underline see @underline-style

<underline> Underline

Underline Attributes parameter entity see %underline-atts;

%underline-atts;

@underline-style

undisclosed author see <anonymous>

Uniform Resource Identifier use <uri>

Uniform Resource Identifier (URI)

unique identifier see @id

@units Units

units of measure see <size> use @units

university see <aff> see <institution>

university degree use <degrees>

unknown, author see <anonymous>

unordered list see <list>

unprinted-item see <supplementary-material>

unstructured citation text see <comment>

Up/Down Rendition Class Elements parameter entity see %subsup.class;

<uri>

URI Attributes parameter entity see %uri-atts; see %uri-atts;

%uri-atts;

%uri-elements;

URI Elements parameter entity see %uri-elements;

URI for This Same Article Online

URL see <ext-link> see <uri>

URL of this article see <self-uri>

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