<?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>1665-1146</journal-id>
<journal-title><![CDATA[Boletín médico del Hospital Infantil de México]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Med. Hosp. Infant. Mex.]]></abbrev-journal-title>
<issn>1665-1146</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud, Hospital Infantil de México Federico Gómez]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-11462021000600544</article-id>
<article-id pub-id-type="doi">10.24875/bmhim.20000379</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Importance of early endoscopic and clinical evaluation of children with caustics ingestion]]></article-title>
<article-title xml:lang="es"><![CDATA[Importancia de la evaluación clínica y endoscópica temprana de niños con ingesta de cáusticos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almanza-Miranda]]></surname>
<given-names><![CDATA[Enory]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Blanco-Rodríguez]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Penchyna-Grub]]></surname>
<given-names><![CDATA[Jaime]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Teyssier-Morales]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peña-Vélez]]></surname>
<given-names><![CDATA[Rubén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Infantil de México Federico Góme Servicio de Cirugía de Tórax y Endoscopia ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Mexico City ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>78</volume>
<numero>6</numero>
<fpage>544</fpage>
<lpage>548</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-11462021000600544&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-11462021000600544&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-11462021000600544&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Accidental ingestion of caustics in pediatrics continues to be a frequent problem that can lead to severe injuries and permanent sequelae that require esophageal rehabilitation programs. This study aimed to describe the medical care experience of children who ingested caustic substances in a tertiary hospital in Mexico City.  Methods: We conducted a descriptive and analytical study. We described age, sex, type of caustics, clinical and endoscopic findings, and the radiological evolution of 284 patients who arrived during the acute phase.  Results: The records of 336 children with a history of caustic ingestion were reviewed. The median age was 1.7 years, and the predominant sex was male. Caustic soda was the most accidentally ingested substance. We found an association between the severity of the esophageal injury with the presence of more than four symptoms at diagnosis (&#967;2, p &lt; 0.001) and with the finding of oral lesions, sialorrhea, and vomiting (&#967;2, p &lt; 0.05). Forty percent (n = 114) showed normal gastrointestinal endoscopy.  Conclusions: In children with caustic ingestion, upper gastrointestinal endoscopy should be performed within 72 hours to evaluate the extent of the lesions. In this study, we found that more than four symptoms at admission, and oral lesions, sialorrhea, and vomiting are associated with the severity of the esophageal injury.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: La ingesta accidental de cáusticos continúa siendo un problema frecuente en pediatría que puede llegar a producir lesiones graves y secuelas permanentes que ameritarán programas de rehabilitación esofágica. El objetivo de este estudio es describir la experiencia en la atención médica de niños con ingesta de sustancias cáusticas en un hospital de tercer nivel en la Ciudad de México.  Métodos: Se llevó a cabo un estudio descriptivo y analítico. Se describieron la edad, el sexo, el tipo de cáustico, los hallazgos clínicos y endoscópicos, así como la evolución radiológica, de 284 pacientes que llegaron en la fase aguda.  Resultados: Se revisaron los expedientes de 336 niños con antecedente de ingesta de cáusticos. La mediana de edad fue de 1.7 años, con predominio del sexo masculino. La sosa cáustica fue la sustancia más ingerida y de tipo accidental. Encontramos asociación entre la gravedad de la lesión esofágica y la presencia de más de cuatro síntomas en el momento del diagnóstico (&#967;2, p &lt; 0.001,), y con el hallazgo de lesiones orales, sialorrea y vómito (&#967;2, p &lt; 0.05). El 40% de los niños (n = 114) tuvieron una endoscopia digestiva normal.  Conclusiones: En los niños con ingesta de cáusticos debe realizarse una endoscopia digestiva alta en las primeras 72 horas para evaluar la extensión de las lesiones. En este estudio se encontró que tener más de cuatro síntomas al ingreso, así como la presencia de lesiones orales, sialorrea y vómito, se asocian con la gravedad de la lesión esofágica.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Caustics]]></kwd>
<kwd lng="en"><![CDATA[Esophagitis]]></kwd>
<kwd lng="en"><![CDATA[Esophageal stenosis]]></kwd>
<kwd lng="en"><![CDATA[Anthropyloric stenosis]]></kwd>
<kwd lng="es"><![CDATA[Cáusticos]]></kwd>
<kwd lng="es"><![CDATA[Esofagitis]]></kwd>
<kwd lng="es"><![CDATA[Estenosis esofágica]]></kwd>
<kwd lng="es"><![CDATA[Estenosis antropilórica]]></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[Pierre]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Neri]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Contreras]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Vázquez]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[LC]]></given-names>
</name>
<name>
<surname><![CDATA[Riveros]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[[Ibero-latinamerican clinical practical guidelines on pediatric caustic esophagitis:physiopathology and clinical-endoscopic diagnosis (1st part)]]]></article-title>
<source><![CDATA[Rev Chil Pediatr]]></source>
<year>2020</year>
<volume>91</volume>
<page-range>149-57</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[Rodríguez Guerineau]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez Sánchez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[QuintilláMartínez]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Trenchs Sainz De La Maza]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Vila Miravet]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Luaces Cubells]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ingesta de cáusticos:situación actual y puesta al día de las recomendaciones]]></article-title>
<source><![CDATA[An Pediatr]]></source>
<year>2011</year>
<volume>75</volume>
<page-range>334-40</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[Riffat]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Cheng]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pediatric caustic ingestion:50 consecutive cases and a review of the literature]]></article-title>
<source><![CDATA[Dis Esophagus]]></source>
<year>2009</year>
<volume>22</volume>
<page-range>89-94</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[Arnold]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Numanoglu]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caustic ingestion in children&#8212;a review]]></article-title>
<source><![CDATA[Semin Pediatr Surg]]></source>
<year>2017</year>
<volume>26</volume>
<page-range>95-104</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[Karaman]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Koç]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Karaman]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Erdo&#287;an]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Çavusoglu]]></surname>
<given-names><![CDATA[YH]]></given-names>
</name>
<name>
<surname><![CDATA[Af&#351;arlar]]></surname>
<given-names><![CDATA[ÇE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluation of 968 children with corrosive substance ingestion]]></article-title>
<source><![CDATA[Indian J Crit Care Med]]></source>
<year>2015</year>
<volume>19</volume>
<page-range>714-8</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[Turner]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Robinson]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Respiratory and gastrointestinal complications of caustic ingestion in children]]></article-title>
<source><![CDATA[Emerg Med J]]></source>
<year>2005</year>
<volume>22</volume>
<page-range>359-61</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[Zargar]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Kochhar]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Nagi]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Mehta]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Mehta]]></surname>
<given-names><![CDATA[SK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ingestion of corrosive acids. Spectrum of injury to upper gastrointestinal tract and natural history]]></article-title>
<source><![CDATA[Gastroenterology]]></source>
<year>1989</year>
<volume>97</volume>
<page-range>702-7</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[Miyake]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Suzaki]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Oishi]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Correlation of gastric ulcer healing features by endoscopy, stereoscopic microscopy, and histology, and a reclassification of the epithelial regenerative process]]></article-title>
<source><![CDATA[Dig Dis Sci]]></source>
<year>1980</year>
<volume>25</volume>
<page-range>8-14</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blanco-Rodríguez]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Teyssier-Morales]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Penchyna-Grub]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Madriñan-Rivas]]></surname>
<given-names><![CDATA[JE]]></given-names>
</name>
<name>
<surname><![CDATA[Rivas-Rivera]]></surname>
<given-names><![CDATA[IA]]></given-names>
</name>
<name>
<surname><![CDATA[Trujillo-Ponce de León]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characteristics and outcomes of foreign body ingestion in children]]></article-title>
<source><![CDATA[Arch Argent Pediatr]]></source>
<year>2018</year>
<volume>116</volume>
<page-range>256-61</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[Sánchez-Ramírez]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
<name>
<surname><![CDATA[Larrosa-Haro]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Vásquez-Garibay]]></surname>
<given-names><![CDATA[EM]]></given-names>
</name>
<name>
<surname><![CDATA[Macías-Rosales]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Socio-demographic factors associated with caustic substance ingestion in children and adolescents]]></article-title>
<source><![CDATA[Int J Pediatr Otorhinolaryngol]]></source>
<year>2012</year>
<volume>76</volume>
<page-range>253-6</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[Rafeey]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ghojazadeh]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Sheikhi]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Vahedi]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caustic ingestion in children:a systematic review and meta-analysis]]></article-title>
<source><![CDATA[J Caring Sci]]></source>
<year>2016</year>
<volume>5</volume>
<page-range>251-65</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[Losada]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
<name>
<surname><![CDATA[Rubio]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
<name>
<surname><![CDATA[Blanca]]></surname>
<given-names><![CDATA[GJA]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[AC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ingesta de cáusticos en niños, experiencia de 3 años]]></article-title>
<source><![CDATA[Rev Chil Pediatr]]></source>
<year>2015</year>
<volume>86</volume>
<page-range>189-93</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[Betalli]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Falchetti]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Giuliani]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Pane]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Dall'Oglio]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[de'Angelis]]></surname>
<given-names><![CDATA[GL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caustic ingestion in children:is endoscopy always indicated?The results of an Italian multicenter observational study]]></article-title>
<source><![CDATA[Gastrointest Endosc]]></source>
<year>2008</year>
<volume>68</volume>
<page-range>434-9</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[Salzman]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[O'Malley]]></surname>
<given-names><![CDATA[RN]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Updates on the evaluation and management of caustic exposures]]></article-title>
<source><![CDATA[Emerg Med Clin North Am]]></source>
<year>2007</year>
<volume>25</volume>
<page-range>459-76</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[Gorman]]></surname>
<given-names><![CDATA[RL]]></given-names>
</name>
<name>
<surname><![CDATA[Khin-Maung-Gyi]]></surname>
<given-names><![CDATA[MT]]></given-names>
</name>
<name>
<surname><![CDATA[Klein-Schwartz]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Oderda]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
<name>
<surname><![CDATA[Benson]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Litovitz]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Initial symptoms as predictors of esophageal injury in alkaline corrosive ingestions]]></article-title>
<source><![CDATA[Am J Emerg Med]]></source>
<year>1992</year>
<volume>10</volume>
<page-range>189-94</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[Pierre]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Neri]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Contreras]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Vázquez]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[LC]]></given-names>
</name>
<name>
<surname><![CDATA[Riveros]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Guía de Práctica Clínica Ibero-Latinoamericana sobre la Esofagitis Cáustica en Pediatría:aspectos terapéuticos (2a parte)]]></article-title>
<source><![CDATA[Rev Chil Pediatr]]></source>
<year>2020</year>
<volume>91</volume>
<page-range>289-99</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Millar]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Cox]]></surname>
<given-names><![CDATA[SG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caustic injury of the oesophagus]]></article-title>
<source><![CDATA[Pediatr Surg Int]]></source>
<year>2015</year>
<volume>31</volume>
<page-range>111-21</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ripoll Trujillo]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez Sánchez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Habimana Jordana]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Trenchs Sainz de La Maza]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Vila Miravet]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Luaces Cubells]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ingesta de cáusticos:análisis de la seguridad y beneficio de un protocolo menos agresivo]]></article-title>
<source><![CDATA[An Pediatr]]></source>
<year>2019</year>
<volume>90</volume>
<page-range>207-12</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zargar]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Kochhar]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Mehta]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Mehta]]></surname>
<given-names><![CDATA[SK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The role of fiberoptic endoscopy in the management of corrosive ingestion and modified endoscopic classification of burns]]></article-title>
<source><![CDATA[Gastrointest Endosc]]></source>
<year>1991</year>
<volume>37</volume>
<page-range>165-9</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Araya]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Montoro]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Estay]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clasificaciones en Gastroenterología. Clasificación de Zargar:Ingestión de cáusticos]]></article-title>
<source><![CDATA[Gastroenterol Latinoam]]></source>
<year>2016</year>
<volume>27</volume>
<page-range>126-9</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
