Hi Joga Singh Rawat,

deduplication is often successfully performed with xsl:for-each-group.

After you have processed the author names, you could try something along

<xsl:for-each-group select="author/affiliation" group-by="@xreflabel">
  <xsl:apply-templates select="."/><!-- processes the first item in the group
-->
</xsl:for-each-group>

Michael

From: Joga Singh Rawat jrawat@xxxxxxxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Wednesday, December 20, 2023 11:02 AM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject:  Remove duplicate affiliation

Hi Friends,
We need to remove duplicate affiliation that can be unique by @xreflabel.
Could you please let me know any clue.

Input
<authorgroup>
<author>
<name>a</name>
<affiliation xreflabel=b1b><org>..</org> First affiliation</affiliation>
<affiliation xreflabel=b2b><sup>..</sup> Second affiliation</affiliation>
</author>
<author>
<name>b</name>
<affiliation xreflabel=b1b><org>..</org> First affiliation</affiliation>
</author>
<author>
<name>c</name>
<affiliation xreflabel=b3b><org>..</org> Third affiliation</affiliation>
</author>
<author>
<name>d</name>
<affiliation xreflabel=b1b><org>..</org> First affiliation</affiliation>
<affiliation xreflabel=b4b><sub>..</sub> Forth affiliation</affiliation>
</author>

Output
<aug>
<au>a</au>
<au>b</au>
<au>c</au>
<au>d</au>
<aff><org>b&</org> First affiliation</aff>
<aff><sup>b&</sup> Second affiliation</aff>
<aff><org>b&</org> Third affiliation</aff>
<aff><sub>b&</sub> Forth affiliation</aff>

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