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<front>
<journal-meta>
<journal-id>0034-8376</journal-id>
<journal-title><![CDATA[Revista de investigación clínica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. invest. clín.]]></abbrev-journal-title>
<issn>0034-8376</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-83762019000100005</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Preface]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Padilla]]></surname>
<given-names><![CDATA[Rogelio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Selman]]></surname>
<given-names><![CDATA[Moisés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Department of Research in Tobacco and COPD  ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,National Institute of Respiratory Diseases Ismael Cosío Villegas Research Unit ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2019</year>
</pub-date>
<volume>71</volume>
<numero>1</numero>
<fpage>5</fpage>
<lpage>6</lpage>
<copyright-statement/>
<copyright-year/>
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</front><back>
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<ref id="B1">
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<collab>GBD 2015 Chronic Respiratory Disease Collaborators</collab>
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<source><![CDATA[Lancet Respir Med]]></source>
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<person-group person-group-type="author">
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<surname><![CDATA[Mirza]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Clay]]></surname>
<given-names><![CDATA[RD]]></given-names>
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<given-names><![CDATA[MA]]></given-names>
</name>
<name>
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<given-names><![CDATA[PD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[COPD guidelines:a review of the 2018 GOLD report]]></article-title>
<source><![CDATA[Mayo Clin Proc]]></source>
<year>2018</year>
<volume>93</volume>
<page-range>1488-502</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
