<?xml version="1.0" encoding="ISO-8859-1"?><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">
<front>
<journal-meta>
<journal-id>2448-8909</journal-id>
<journal-title><![CDATA[Medicina crítica (Colegio Mexicano de Medicina Crítica)]]></journal-title>
<abbrev-journal-title><![CDATA[Med. crít. (Col. Mex. Med. Crít.)]]></abbrev-journal-title>
<issn>2448-8909</issn>
<publisher>
<publisher-name><![CDATA[Colegio Mexicano de Medicina Crítica A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2448-89092021000400176</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Síndrome de dificultad respiratoria vs síndrome de dificultad respiratoria por COVID-19: las diferencias que realmente importan]]></article-title>
<article-title xml:lang="en"><![CDATA[Respiratory distress syndrome vs COVID-19 respiratory distress syndrome: the differences that really matter]]></article-title>
<article-title xml:lang="pt"><![CDATA[Síndrome da dificuldade respiratória vs síndrome da dificuldade respiratória por COVID-19: as diferenças que realmente importam]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bórquez-López]]></surname>
<given-names><![CDATA[Yazmín Fabiola]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Monares-Zepeda]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Franco-Granillo]]></surname>
<given-names><![CDATA[Juvenal]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguirre-Sánchez]]></surname>
<given-names><![CDATA[Janet Silvia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chaires-Gutiérrez]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Médico ABC  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<volume>35</volume>
<numero>4</numero>
<fpage>176</fpage>
<lpage>181</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2448-89092021000400176&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2448-89092021000400176&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2448-89092021000400176&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  El síndrome respiratorio agudo severo causado por el coronavirus 2 (SARS-CoV-2), ahora clasificado como enfermedad por coronavirus 2019 (COVID-19), ha presentado mayor morbilidad y mortalidad, en gran parte a causa de la neumonitis viral aguda que evoluciona a síndrome de dificultad respiratoria aguda (SDRA), pero pocos estudios han analizado las comparaciones entre ambas enfermedades.  Objetivos:  Evaluar las características sociodemográficas, parámetros ventilatorios y mortalidad en pacientes con síndrome de dificultad respiratoria (ARDS) vs síndrome de dificultad respiratoria por COVID-19 (CARDS).  Material y métodos:  Estudio de cohorte prospectivo en pacientes con ARDS vs CARDS bajo ventilación mecánica.  Resultados:  95 pacientes evaluados, 47 (49.4%) presentaron ARDS y 48 (50.5%) presentaron COVID-19. En la comparación de parámetros de oxigenación PaO2/FiO2 de 134 mmHg (rango intercuartil 57-411 mmHg) en el grupo de ARDS y 118 mmHg (rango intercuartil 50-351 mmHg) con una p = 0.746 en CARDS sin diferencias significativas, en ambos grupos se respetaron medidas de protección pulmonar con volúmenes tidales bajos 6-8 mL/kg peso ARDSnet en ARDS 5.8 mL/kg (rango intercuartil 4.7-7.8) y CARDS 6.3 mL/kg (Rango Intercuartil 4.5-7.5) p = 0.51, presión meseta &gt; 30 mmHg, en CARDS de 24.6 ± 3.2 cmH2O y ARDS 24.8 ± 3.2 cmH2O, p = 0.810, presión de conducción &lt; 15 mmHg, fue de 13.1 ± 3.1 cmH2O en ARDS y CARDS de 12.9 ± 2.3 cmH2O p = 0.73. Con mayor mortalidad 48.9% y días de ventilación mecánica en pacientes con ARDS.  Conclusión:  No se encontraron diferencias significativas en ambos grupos respecto al índice de oxigenación, ambos respetaron metas de protección pulmonar, pero se encontró mayor mortalidad y días de ventilación mecánica en el grupo de ARDS.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  The severe acute respiratory syndrome caused by coronavirus 2 (SARS-CoV-2), now classified as coronavirus disease 2019 (COVID-19), has presented higher morbidity and mortality, largely to acute viral pneumonitis that evolves into syndrome respiratory distress (ARDS), but only few studies have analyzed comparisons between the two diseases.  Objectives:  To evaluate the sociodemographic characteristics, ventilatory parameters and mortality in patients with ARDS vs CARDS.  Material and methods:  Prospective cohort study in patients with ARDS vs CARDS under mechanical ventilation.  Results:  95 patients evaluated, 47 (49.4%) presented ARDS and 48 (50.5%) presented COVID-19. In the comparison of PaO2/FiO2 oxygenation parameters of 134 mmHg (IQR 57 -411 mmHg) in the ARDS group and 118 mmHg (IQR 50-351 mmHg) with a p = 0.746 in CARDS without significant differences, in both groups lung protection measures were respected with low tidal volumes 6-8 mL/kg ARDSnet weight in ARDS 5.8 mL/kg (IQR 4.7-7.8) and CARDS 6.3 mL/kg (IQR 4.5-7.5) p = 0.51, Plateau pressure &gt; 30 mmHg, in CARDS of 24.6 cmH2O ± 3.2 and ARDS 24.8 cmH2O ± 3.2. p = 0.810, conduction pressure &lt; 15 mmHg, was 13.1 cmH2O ± 3.1 in ARDS and CARDS of 12.9 ± 2.3 cmH2O p = 0.73. With 48.9% higher mortality and days of mechanical ventilation in patients with ARDS.  Conclusion:  No significant differences were found in both groups regarding the oxygenation index, both respected lung protection goals, but higher mortality and days of mechanical ventilation were found in the ARDS group.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução:  A síndrome respiratória aguda grave causada pelo coronavírus 2 (SARS-CoV-2), agora classificada como doença por coronavírus 2019 (COVID-19), apresentou maior morbimortalidade principalmente por pneumonite viral aguda que evolui ao síndrome do desconforto respiratório (ARDS), mas poucos estudos analisaram as comparações entre as duas doenças.  Objetivos:  Avaliar as características sociodemográficas, parâmetros ventilatórios e mortalidade em pacientes com ARDS vs CARDS.  Material e métodos:  Estudo de coorte prospectivo em pacientes com ARDS vs CARDS com ventilação mecânica.  Resultados:  95 pacientes avaliados, 47 (49.4%) apresentaram ARDS e 48 (50.5%) apresentaram COVID-19. Na comparação dos parâmetros de oxigenação PaO2/FiO2 de 134 mmHg (RIC 57-411 mmHg) no grupo ARDS e 118 mmHg (RIC 50-351 mmHg) com uma p = 0.746 em CARDS sem diferenças significativas, em ambos os grupos as medidas de proteção pulmonar foram respeitadas com volumes correntes baixos 6-8 mL/kg ARDSnet em ARDS 5.8 mL/kg (RIC 4.7-7.8) e CARDS 6.3 mL/kg ( RIC 4.5-7.5) p = 0.51, pressão de platô &gt; 30 mmHg, em CARDS de 24.6 ± 3.2 ARDS 24.8 cmH2O ± 3.2 p = 0.810, pressão de condução &lt; 15 mmHg, foi de 13.1 cmH2O ± 3.1 em ARDS e CARDS de 12.9 ± 2.3 cmH2O p = 0.73. Com maior mortalidade 48.9% e dias de ventilação mecânica em pacientes com ARDS.  Conclusão:  Não foram encontradas diferenças significativas nos dois grupos quanto ao índice de oxigenação, ambos respeitando as metas de proteção pulmonar, mas maior mortalidade e dias de ventilação mecânica foram encontrados no grupo SDRA.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[ARDS]]></kwd>
<kwd lng="es"><![CDATA[CARDS]]></kwd>
<kwd lng="es"><![CDATA[PaO2/FiO2]]></kwd>
<kwd lng="es"><![CDATA[mortalidad]]></kwd>
<kwd lng="en"><![CDATA[ARDS]]></kwd>
<kwd lng="en"><![CDATA[CARDS]]></kwd>
<kwd lng="en"><![CDATA[PaO2/FiO2]]></kwd>
<kwd lng="en"><![CDATA[mortality]]></kwd>
<kwd lng="pt"><![CDATA[ARDS]]></kwd>
<kwd lng="pt"><![CDATA[CARDS]]></kwd>
<kwd lng="pt"><![CDATA[PaO2/FiO2]]></kwd>
<kwd lng="pt"><![CDATA[mortalidade]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ashbaugh]]></surname>
<given-names><![CDATA[DG]]></given-names>
</name>
<name>
<surname><![CDATA[Bigelow]]></surname>
<given-names><![CDATA[DB]]></given-names>
</name>
<name>
<surname><![CDATA[Petty]]></surname>
<given-names><![CDATA[TL]]></given-names>
</name>
<name>
<surname><![CDATA[Levine]]></surname>
<given-names><![CDATA[BE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acute respiratory distress in adults]]></article-title>
<source><![CDATA[Lancet]]></source>
<year>1967</year>
<volume>2</volume>
<numero>7511</numero>
<issue>7511</issue>
<page-range>319-23</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferguson]]></surname>
<given-names><![CDATA[ND]]></given-names>
</name>
<name>
<surname><![CDATA[Fan]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Camporota]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Antonelli]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Anzueto]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Beale]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Berlin definition of ARDS: an expanded rationale, justification, and supplmentary material]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2012</year>
<volume>38</volume>
<page-range>1573-82</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thompson]]></surname>
<given-names><![CDATA[BT]]></given-names>
</name>
<name>
<surname><![CDATA[Chambers]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[KD]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acute respiratory distress syndrome]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2017</year>
<volume>377</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>562-72</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kamo]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Tasaka]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Suzuki]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Asakura]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Suzuki]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Yagi]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prognostic values of the Berlin definition criteria, blood lactate level, and fibroproliferative changes on high-resolution computed tomography in ARDS patients]]></article-title>
<source><![CDATA[BMC Pulm Med]]></source>
<year>2019</year>
<volume>19</volume>
<page-range>37</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guan]]></surname>
<given-names><![CDATA[WJ]]></given-names>
</name>
<name>
<surname><![CDATA[Ni]]></surname>
<given-names><![CDATA[ZY]]></given-names>
</name>
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Liang]]></surname>
<given-names><![CDATA[WH]]></given-names>
</name>
<name>
<surname><![CDATA[Ou]]></surname>
<given-names><![CDATA[CQ]]></given-names>
</name>
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[JX]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinical characteristics of coronavirus disease 2019 in China]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2020</year>
<volume>382</volume>
<page-range>1708-20</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Joly]]></surname>
<given-names><![CDATA[BS]]></given-names>
</name>
<name>
<surname><![CDATA[Siguret]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Veyradier]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Understanding pathophysiology of hemostasis disorders in critically ill patients with COVID-19]]></article-title>
<source><![CDATA[Intensive Care Mediciner]]></source>
<year>2020</year>
<volume>46</volume>
<page-range>1063-606</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ackermann]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Verleden]]></surname>
<given-names><![CDATA[SE]]></given-names>
</name>
<name>
<surname><![CDATA[Kuehnel]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Haverich]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Welte]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Laenger]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pulmonary vascular endothelialitis, thrombosis, and angiogenesis in Covid-19]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2020</year>
<volume>383</volume>
<page-range>120-8</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Borczuk]]></surname>
<given-names><![CDATA[AC]]></given-names>
</name>
<name>
<surname><![CDATA[Salvatore]]></surname>
<given-names><![CDATA[SP]]></given-names>
</name>
<name>
<surname><![CDATA[Seshan]]></surname>
<given-names><![CDATA[SV]]></given-names>
</name>
<name>
<surname><![CDATA[Patel]]></surname>
<given-names><![CDATA[SS]]></given-names>
</name>
<name>
<surname><![CDATA[Bussel]]></surname>
<given-names><![CDATA[JB]]></given-names>
</name>
<name>
<surname><![CDATA[Mostyka]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[COVID-19 pulmonary pathology: a multi-institutional autopsy cohort from Italy and New York City]]></article-title>
<source><![CDATA[Mod Pathol]]></source>
<year>2020</year>
</nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gattinoni]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Chiumello]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Caironi]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Busana]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Romitti]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Brazzi]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[COVID-19 pneumonia: different respiratory treatments for different phenotypes?]]></article-title>
<source><![CDATA[Intensive Care Med]]></source>
<year>2020</year>
<volume>46</volume>
<page-range>1099-102</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gattinoni]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Chiumello]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Rossi]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[COVID-19 pneumonia: ARDS or not?]]></article-title>
<source><![CDATA[Crit Care]]></source>
<year>2020</year>
<volume>24</volume>
<page-range>154</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acute respiratory failure in COVID-19: is it &#8220;typical&#8221; ARDS?]]></article-title>
<source><![CDATA[Crit Care]]></source>
<year>2020</year>
<volume>24</volume>
<page-range>198</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kunhua]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Jiong]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Faqi]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Dajing]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Linli]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Zheng]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The clinical and chest CT features associated with severe and critical COVID-19 pneumonia]]></article-title>
<source><![CDATA[Invest Radiol]]></source>
<year>2020</year>
<volume>55</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>327-31</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Prokop]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Van Everdingen]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Van Rees]]></surname>
<given-names><![CDATA[VT]]></given-names>
</name>
<name>
<surname><![CDATA[Quarles]]></surname>
<given-names><![CDATA[VH]]></given-names>
</name>
<name>
<surname><![CDATA[Stoger]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Beenen]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[CO-RADS-A categorical CT assessment scheme for patients with suspected COVID-19: definition and evaluation]]></article-title>
<source><![CDATA[Radiology]]></source>
<year>2020</year>
<volume>296</volume>
<page-range>E97-E104</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quah]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Phua]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mortality rates of patients with COVID-19 in the intensive care unit: a systematic review of the emerging literature]]></article-title>
<source><![CDATA[Crit Care]]></source>
<year>2020</year>
<volume>24</volume>
<page-range>285</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dreher]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Kersten]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bickenbach]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Balfanz,]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Hartmann]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Cornelissen]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The characteristics of 50 hospitalized COVID-19 patients with and without ARDS]]></article-title>
<source><![CDATA[Dtsch Arztebl Int]]></source>
<year>2020</year>
<volume>117</volume>
<numero>16</numero>
<issue>16</issue>
<page-range>271-8</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Valente-Acosta]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Hoyo-Ulloa]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Espinosa-Aguilar]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Mendoza-Aguilar]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Garcia-Guerrero]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Ontañon-Zurita]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Gomez-Gomez]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[COVID-19 severe pneumonia in Mexico City-First experience in a Mexican hospital]]></article-title>
<source><![CDATA[MedRxiv]]></source>
<year>2020</year>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
