page range in Reference

Hi,

Below is my input  and required output xml. Need to all dot, columns(:) in
outside elements will be same to go output xml. I am struggling how to
manage page range tag ( <fpage>752</fpage>&#x2013;<lpage>8</lpage>) in
output reference.

<mixed-citation><person-group
person-group-type="author"><string-name><surname>Kie</surname>
<given-names>DW</given-names></string-name>,
<string-name><surname>Doon</surname>
<given-names>E</given-names></string-name>, <etal>et
al.</etal></person-group> <article-title>Gestational how much is
enough</article-title>
<year>2007</year>;<volume>110</volume>:<fpage>752</fpage>&#x2013;<lpage>8</lpage>.</mixed-citation>

Required Output:

<mixed-citation><string-name><surname>Kie</surname>
<given-names>DW</given-names></string-name>,
<string-name><surname>Doon</surname>
<given-names>E</given-names></string-name>, <etal>et al.</etal>
<article-title>Gestational how much is enough</article-title>
<year>2007</year>;<volume>110</volume>:<page-range>752-8</page-range>.</mixed-citation>

My XSLT:

 <xsl:template match="mixed-citation">
<xsl:element name="mixed-citation">
<xsl:apply-templates/>
</xsl:element>
</xsl:template>
<xsl:template match="string-name">
<xsl:element name="author">
<xsl:apply-templates/>
</xsl:element>
</xsl:template>
<xsl:template match="article-title | source
|year|volume|author|surname|given-names|etal">
<xsl:element name="{local-name()}">
<xsl:apply-templates/>
</xsl:element>
</xsl:template>

Any one suggest how will apply <fpage>752</fpage>&#x2013;<lpage>8</lpage>
to <page-range>752-8</page-range>.

Thanks
Byomokesh