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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Current Pediatric Reviews</journal-id><journal-title-group><journal-title xml:lang="en">Current Pediatric Reviews</journal-title><trans-title-group xml:lang="ru"><trans-title>Current Pediatric Reviews</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1573-3963</issn><issn publication-format="electronic">1875-6336</issn><publisher><publisher-name xml:lang="en">Bentham Science</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">645715</article-id><article-id pub-id-type="doi">10.2174/1573396320666230718100609</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>Medicine</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">COVID-19 Associated Croup</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Hon</surname><given-names>Kam</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>Tan</surname><given-names>Yok</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name><surname>Leung</surname><given-names>Karen</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name><surname>Hui</surname><given-names>Wun</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name><surname>Tang</surname><given-names>Swee</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name><surname>Qian</surname><given-names>Su</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name><surname>Chiu</surname><given-names>Wa</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff5"/></contrib></contrib-group><aff id="aff1"><institution>Department of Paediatrics, The Chinese University of Hong Kong</institution></aff><aff id="aff2"><institution>Paediatrics and Adolescent Medicine, Hong Kong Childrens Hospital</institution></aff><aff id="aff3"><institution>, Universiti Kebangsaan Malaysia (UKM) Specialist Children's Hospital</institution></aff><aff id="aff4"><institution>, PICU, Beijing Childrens Hospital, Capital Medical University</institution></aff><aff id="aff5"><institution>Paediatrics and Adolescent Medicine, United Christian Hospital</institution></aff><pub-date date-type="pub" iso-8601-date="2024-04-01" publication-format="electronic"><day>01</day><month>04</month><year>2024</year></pub-date><volume>20</volume><issue>4</issue><issue-title xml:lang="ru"/><fpage>453</fpage><lpage>457</lpage><history><date date-type="received" iso-8601-date="2025-01-11"><day>11</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Bentham Science Publishers</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Bentham Science Publishers</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/1573-3963/article/view/645715">https://journals.eco-vector.com/1573-3963/article/view/645715</self-uri><abstract xml:lang="en"><p/></abstract></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Leung KKY, Ku SW, Fung RCM, Hui WF, Au CC, Cheung WL. 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