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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">JPSIM</journal-id>
      <journal-title-group>
        <journal-title>Journal of Pakistan Society of Internal Medicine</journal-title>
        <abbrev-title>J Pak Soc Intern Med</abbrev-title>
      </journal-title-group>
      <issn publication-format="print">2709-8729</issn>
      <issn publication-format="electronic">2710-0804</issn>
      <publisher>
        <publisher-name>Pakistan Society of Internal Medicine</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.70302/jpsim.v4i2.2332</article-id>
      <article-id pub-id-type="publisher-id">jpsim.v4i2.2332</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Case Report</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>A Rare Case of Area Postrema Variant (Intractable Vomiting and Hiccups) of Neuromyelitis Optica Spectrum Disorder (NMOSD) in a 25 Year Female Patient</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Hussain</surname>
            <given-names>Jawad</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author" corresp="yes">
          <name>
            <surname>Banaras</surname>
            <given-names>Faizan</given-names>
          </name>
          <email>faizanbanaras958@gmail.com</email>
          <xref ref-type="aff" rid="aff1"/>
          <xref ref-type="corresp" rid="cor1">*</xref>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Tahir</surname>
            <given-names>Tehrim</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Fayyaz</surname>
            <given-names>Ramish</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Ashfaq</surname>
            <given-names>Mahnoor</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Usman</surname>
            <given-names>Muhammad</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Raza</surname>
            <given-names>Ali</given-names>
          </name>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
      </contrib-group>
      <aff id="aff1">
        <institution>Allied Ayub Teaching Hospital Abbottabad, KPK</institution>
      </aff>
      <author-notes>
        <corresp id="cor1">*Correspondence: Faizan Banaras (faizanbanaras958@gmail.com)</corresp>
      </author-notes>
      <pub-date date-type="pub" publication-format="electronic" iso-8601-date="2023-06-02">
        <day>02</day>
        <month>06</month>
        <year>2023</year>
      </pub-date>
      <pub-date date-type="collection" publication-format="electronic">
        <year>2023</year>
      </pub-date>
      <volume>4</volume>
      <issue>2</issue>
      <fpage>152</fpage>
      <lpage>154</lpage>
      <history>
        <date date-type="received" iso-8601-date="2023-02-15">
          <day>15</day>
          <month>02</month>
          <year>2023</year>
        </date>
        <date date-type="accepted" iso-8601-date="2023-03-22">
          <day>22</day>
          <month>03</month>
          <year>2023</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>Copyright © 2023 The Author(s)</copyright-statement>
        <copyright-year>2023</copyright-year>
        <copyright-holder>The Author(s)</copyright-holder>
        <ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/>
        <license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/">
          <ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0/</ali:license_ref>
          <license-p>This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
        </license>
      </permissions>
      <self-uri xlink:href="https://psimj.com/article/jpsim.v4i2.2332" content-type="text/html"/>
      <self-uri xlink:href="https://psimj.com/article/jpsim.v4i2.2332.pdf" content-type="application/pdf"/>
      <abstract>
        <p>Nausea and vomiting are commonest complaints in an emergency department in hospitals. Neuromyelitis optica spectrum disorders (NMOSDs) are CNS autoimmune disorders related to highly specific biomarkers for astrocytic water channel aquaporin-4. Area postrema syndrome (APS) is described as intractable nausea, vomiting, or hiccups that can be intermittent or may persist longer than 48 hours, and other pathologies should be excluded, as may be misdiagnosed with digestive system disorders.</p>
      </abstract>
      <kwd-group xml:lang="en" kwd-group-type="author-keywords">
        <title>Keywords</title>
        <kwd>Neuromyelitis optica spectrum disorders</kwd>
        <kwd>Chemo trigger zone</kwd>
        <kwd>Intractable nausea.</kwd>
      </kwd-group>
    </article-meta>
  </front>
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  <back>
    <ref-list>
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</article>
