<?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>1729-519X</journal-id>
<journal-title><![CDATA[Revista Habanera de Ciencias Médicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev haban cienc méd]]></abbrev-journal-title>
<issn>1729-519X</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de la Habana]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1729-519X2015000400010</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Índice cintura cadera y peso de adenoma prostático]]></article-title>
<article-title xml:lang="en"><![CDATA[Waist-hip ratio and prostatic adenoma weight]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez Gil]]></surname>
<given-names><![CDATA[Mario Alberty]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Luna-Abanto]]></surname>
<given-names><![CDATA[Jorge Christian]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional de Trujillo (UNT) Facultad de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Perú</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2015</year>
</pub-date>
<volume>14</volume>
<numero>4</numero>
<fpage>470</fpage>
<lpage>477</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1729-519X2015000400010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1729-519X2015000400010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1729-519X2015000400010&amp;lng=en&amp;nrm=iso"></self-uri><kwd-group>
<kwd lng="es"><![CDATA[hiperplasia prostática benigna]]></kwd>
<kwd lng="es"><![CDATA[índice cintura cadera]]></kwd>
<kwd lng="es"><![CDATA[próstata]]></kwd>
<kwd lng="es"><![CDATA[obesidad]]></kwd>
<kwd lng="en"><![CDATA[Benign prostatic hyperplasia]]></kwd>
<kwd lng="en"><![CDATA[waist hip ratio]]></kwd>
<kwd lng="en"><![CDATA[prostate]]></kwd>
<kwd lng="en"><![CDATA[obesity]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	     <p style='line&#45;height:normal' align="right"><font face="verdana" size="2"><b>CIENCIAS    QUIR&Uacute;RGICAS</b></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">&nbsp;</font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2">Universidad Nacional    de Trujillo (UNT), Per&uacute;    <br>   </font><font face="verdana" size="2">Facultad de Medicina</font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">&nbsp;</font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b><font size="4">&Iacute;ndice    cintura cadera y peso de adenoma prost&aacute;tico</font></b></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2"><b>&nbsp;</b></font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b><font size="3">Waist&#45;hip    ratio and prostatic adenoma weight</font></b></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2"><b>&nbsp;</b></font></p>  	     ]]></body>
<body><![CDATA[<p style='line&#45;height:normal'>&nbsp;</p>     <p style='line&#45;height:normal'><font face="verdana" size="2"><b>Mario Alberty    Ch&aacute;vez Gil<sup>I</sup>, Jorge Christian Luna&#45;Abanto<sup>II</sup></b></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2"><sup>I</sup> Especialista    en Urolog&iacute;a. Profesor asociado de la UNT.&nbsp; e.mail: <a href="mailto:mariochg@gmail.com">mariochg@gmail.com</a>    <br>   </font><font face="verdana" size="2"><sup>II</sup> Estudiante de Medicina de    la UNT.&nbsp; e.mail: <a href="mailto:jorgelunaabanto@gmail.com">jorgelunaabanto@gmail.com</a></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">&nbsp;</font></p>  	     <p style='line&#45;height:normal'>&nbsp;</p> <hr>     <p style='line&#45;height:normal'><font face="verdana" size="2"><b>RESUMEN</b></font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b>Introducci&oacute;n:</b>    la hiperplasia prost&aacute;tica benigna (HPB) y la obesidad son problemas de    salud prevalentes en hombres mayores. <b>    <br>   Objetivo</b>: determinar la existencia de correlaci&oacute;n entre el &iacute;ndice    cintura cadera (ICC) y peso de adenoma prost&aacute;tico. <b>    <br>   Material y m&eacute;todos</b>: 34 pacientes fueron evaluados, se midi&oacute;    la circunferencia de cintura y cadera seg&uacute;n el protocolo de la Organizaci&oacute;n    Mundial de Salud (OMS) en el preoperatorio y se registr&oacute; el peso del    adenoma prost&aacute;tico enucleado en sala de operaciones. <b>    ]]></body>
<body><![CDATA[<br>   Resultados</b>: la edad media de los participantes fue 70 a&ntilde;os, el &iacute;ndice    cintura cadera medio fue 0.99, el peso medio del adenoma enucleado fue 54.38    g. Entre las variables &Iacute;ndice cintura cadera y peso de adenoma se encontr&oacute;    correlaci&oacute;n inversa (r:&#45;0.179); sin embargo, esta correlaci&oacute;n    es d&eacute;bil (r<sup>2</sup>: 0.03) y no significativa (p: 0.312). <b>    <br>   Conclusi&oacute;n</b>: no se encontr&oacute; correlaci&oacute;n entre el &iacute;ndice    cintura cadera y el peso de adenoma prost&aacute;tico.</font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2"><b>Palabras clave</b>:    hiperplasia prost&aacute;tica benigna, &iacute;ndice cintura cadera, pr&oacute;stata,    obesidad.</font></p> <hr>     <p style='line&#45;height:normal'><font face="verdana" size="2"><b>ABSTRACT</b></font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b>Introduction:</b>    Benign prostatic hyperplasia (BPH) and obesity are prevalent health problems    in older men. <b>    <br>   Objective</b>: the aim of this study is to determine the existence of correlation    between waist&#45;hip ratio and the prostatic adenoma weight. <b>    <br>   Material and Methods</b>: 34 patients were enrolled, measurements of waist and    hip circumference were performed before surgery according to the World Health    Organization (WHO) protocol and the enucleated prostatic adenoma was weighed    in the operating room. <b>    <br>   Results:</b> the average age of participants was 70 years, the average waist&#45;hip    ratio was 0.99, and the average weight of the enucleated adenoma was 54.38 g.    Among the variables waist&#45;hip ratio and weight of adenoma inverse correlation    was found (r: &#45;0.179), however this correlation is weak (r<sup>2</sup>:    0.03) and not significant (p: 0.312). <b>    <br>   Conclusion:</b> no correlation between waist&#45;hip ratio and the weight of    prostatic adenoma was found.</font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b>Key words:</b>    Benign prostatic hyperplasia, waist hip ratio, prostate, obesity.</font></p> <hr>     ]]></body>
<body><![CDATA[<p style='line&#45;height:normal'><font face="verdana" size="2">&nbsp;</font></p>     <p style='line&#45;height:normal'>&nbsp;</p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b><font size="3">INTRODUCCI&Oacute;N</font></b></font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2">La hiperplasia    prost&aacute;tica benigna (HPB) es un problema com&uacute;n en los hombres mayores,    clasificado como una enfermedad con alta morbilidad, siendo responsable de importante    disminuci&oacute;n en la calidad de vida.<sup>1-3</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">El t&eacute;rmino hiperplasia prost&aacute;tica benigna hace referencia a un diagn&oacute;stico histol&oacute;gico caracterizado por la proliferaci&oacute;n de c&eacute;lulas musculares lisas y epiteliales en la zona de transici&oacute;n de la gl&aacute;ndula prost&aacute;tica.<sup>4</sup> La etiolog&iacute;a de HPB es desconocida, aunque por la similitud del proceso y la g&eacute;nesis embrionaria de la gl&aacute;ndula, se ha postulado como mecanismo el "redespertar" de procesos embrionarios.<sup>4</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">El peso promedio de la pr&oacute;stata es de 20 gramos en varones entre 21 a 30 a&ntilde;os y var&iacute;a durante el tiempo, creciendo sostenidamente en los varones que desarrollan la enfermedad.<sup>5</sup> La prevalencia de HPB histol&oacute;gicamente diagnosticada aumenta en funci&oacute;n de la edad, desde 8% en los hombres de 31 a 40 a&ntilde;os de edad, de 40 a 50% en los hombres 51 a&ntilde;os y 60 a&ntilde;os, a m&aacute;s de 80% en mayores de 80 a&ntilde;os.<sup>6</sup> Se han identificado como factores de riesgo: la raza negra, altos niveles de ant&iacute;geno prost&aacute;tico espec&iacute;fico libre (PSAL), enfermedades card&iacute;acas, el uso de beta&#45;bloqueadores, y la falta de ejercicio f&iacute;sico.<sup>7</sup> El crecimiento glandular ha sido propuesto como factor determinante al momento en el cual el paciente desarrolla s&iacute;ntomas del tracto urinario bajo; estos s&iacute;ntomas pueden dividirse en dos componentes: uno, est&aacute;tico obstructivo directo, que ejerce la gl&aacute;ndula aumentada de tama&ntilde;o sobre el tracto urinario y el otro, din&aacute;mico irritativo, relacionado con el aumento del tono muscular de las c&eacute;lulas musculares lisas;<sup>4</sup> sin embargo, se dice que el tama&ntilde;o prost&aacute;tico no est&aacute; relacionado con la severidad de los s&iacute;ntomas.<sup>8</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">Si&nbsp; bien es cierto, la edad tiene un papel importante en el tama&ntilde;o prost&aacute;tico, no es el &uacute;nico factor implicado.<sup>9</sup> Se ha correlacionado el tama&ntilde;o glandular con medidas antropom&eacute;tricas como el &iacute;ndice de masa corporal y medidas aisladas de peso, talla y circunferencia de cintura;<sup>2, 3</sup> asimismo, m&uacute;ltiples estudios han demostrado asociaci&oacute;n entre el volumen prost&aacute;tico y un mayor nivel de adiposidad, peso, &iacute;ndice de masa corporal y circunferencia de la cintura.<sup>10&#45;14</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">La obesidad es el exceso de acumulaci&oacute;n de tejido adiposo y tiene un rol clave en el desarrollo de anormalidades del metabolismo de hormonas sexuales y niveles de insulina.<sup>10</sup> El dep&oacute;sito de adiposidad abdominal incrementa con la edad as&iacute; como los cambios en el metabolismo de hormonas esteroideas, regulaci&oacute;n de insulina, niveles de la globulina fijadora de hormonas sexuales asociadas al envejecimiento y el crecimiento prost&aacute;tico, estos cambios podr&iacute;an ser acelerados por la obesidad.<sup>15</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">La obesidad puede afectar el crecimiento prost&aacute;tico, aumentando los niveles de estr&oacute;geno as&iacute; como el estradiol total, disminuyendo la testosterona libre y total as&iacute; como los niveles s&eacute;ricos de globulinas fijadoras de prote&iacute;nas. La elevada relaci&oacute;n estr&oacute;geno&#45;testosterona, caracter&iacute;stica de personas obesas, podr&iacute;a aumentar la relaci&oacute;n celular estroma&#45;epitelio en HPB.<sup>10, 16</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">Se ha documentado que no es la cantidad total de tejido adiposo, sino la distribuci&oacute;n del mismo la que condicionar&iacute;a el aumento de morbilidad en la obesidad, la cual est&aacute; relacionada con el aumento del estr&eacute;s oxidativo en el que se encuentran estas personas;<sup>17, 18</sup> adem&aacute;s, existe asociaci&oacute;n entre la prevalencia de s&iacute;ntomas del tracto urinario inferior, asociados a HPB, con medidas antropom&eacute;tricas de obesidad.<sup>10, 19, 20</sup></font></p>  	    ]]></body>
<body><![CDATA[<p style='line&#45;height:normal'><font face="verdana" size="2">Existen publicaciones en las cuales no se observa asociaci&oacute;n entre el volumen prost&aacute;tico y el &iacute;ndice de masa corporal.<sup>21&#45;23</sup> Ante esta disyuntiva, la circunferencia de cintura ser&iacute;a la mejor medida asociada al volumen prost&aacute;tico, ya que reflejar&iacute;a la asociaci&oacute;n entre la distribuci&oacute;n del tejido adiposo y el crecimiento prost&aacute;tico, lo cual fue verificado por algunos estudios.<sup>10, 24, 25</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">La obesidad podr&iacute;a estar asociada a HPB y constituir un factor modificable de la enfermedad. Existen estudios contradictorios indicando un papel dudoso en esta patolog&iacute;a; sin embargo, se han reportado asociaciones mayores al medir la circunferencia de cintura, la cual es una medida indirecta de adiposidad localizada.<sup>24</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">&nbsp;</font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b><font size="3">OBJETIVO</font></b></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">El objetivo de nuestro trabajo es determinar la existencia de correlaci&oacute;n entre el &iacute;ndice cintura cadera (ICC) y peso de adenoma prost&aacute;tico.</font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">&nbsp;</font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b><font size="3">MATERIAL    Y M&Eacute;TODOS</font></b></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">Se realiz&oacute; un estudio prospectivo de corte transversal en el servicio de Urolog&iacute;a del Hospital IV "V&iacute;ctor Lazarte Echegaray" durante el per&iacute;odo julio&#45;diciembre 2013.</font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">Se incluyeron pacientes programados a prostatectom&iacute;a transvesical que aceptaron participar, brindando su consentimiento informado y se excluyeron aquellos en tratamiento con bloqueadores, estatinas, con deformidades de la pared abdominal, pacientes postrados y los que no aceptaron participar del estudio.</font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">El presente estudio incluy&oacute; 50 pacientes consecutivos sometidos a prostatectom&iacute;a transvesical, de los cuales 34 cumplieron criterios de inclusi&oacute;n, 13 fueron excluidos y 3 rechazaron participar.</font></p>  	    ]]></body>
<body><![CDATA[<p style='line&#45;height:normal'><font face="verdana" size="2">Las mediciones de circunferencia de cintura y cadera fueron realizadas por personal entrenado, utilizando cinta m&eacute;trica PALTEX&reg; (150cm) de acuerdo con criterios establecidos por OMS.<sup>26</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">El peso en gramos de la pieza anat&oacute;mica fue registrado por personal entrenado en sala de operaciones, seg&uacute;n instrucciones del fabricante y mediante balanza electr&oacute;nica de precisi&oacute;n: CAMRY&reg; High Precisi&oacute;n Pocket Scale (capacidad: 200g, graduaci&oacute;n: 0.02g) con certificaci&oacute;n ISO 9001:2008.<sup>27</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">El an&aacute;lisis estad&iacute;stico se realiz&oacute; utilizando el programa IBM SPSS Statistics versi&oacute;n 21. Se tabularon los datos recogidos en la tabla de recolecci&oacute;n de datos, se elaboraron tablas y figuras relacionando las variables evaluadas; la correlaci&oacute;n entre las variables fue determinada mediante el coeficiente de correlaci&oacute;n de Pearson.<sup>28</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">El estudio se hizo con total discreci&oacute;n y prudencia de los datos recogidos, garantizando la privacidad y la no divulgaci&oacute;n de estos; siguiendo la pauta 18 del Council for International Organizations of Medical Sciences (CIOMS) con respecto a la protecci&oacute;n de la confiabilidad.<sup>29</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">&nbsp;</font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b><font size="3">RESULTADOS</font></b></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">La edad media fue 70 a&ntilde;os (rango 54&#45;85 a&ntilde;os), el &iacute;ndice cintura cadera medio fue 0.99 (rango 0.91&#45;1.1) y el peso medio del adenoma prost&aacute;tico fue 54.38 g (rango 10&#45;150g). Entre las variables ICC y peso de adenoma prost&aacute;tico se encontr&oacute; una leve correlaci&oacute;n inversa (r:&#45;0.179); sin embargo, esta correlaci&oacute;n es d&eacute;bil (r<sup>2</sup>:0.03) y no significativa (p: 0.312)</font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">&nbsp;</font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b><font size="3">DISCUSI&Oacute;N</font></b></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">La obesidad es un problema de salud p&uacute;blica que afecta a todos los grupos etarios, el Instituto Nacional de Salud report&oacute; que en el grupo etario afectado por HPB, la prevalencia de sobrepeso y obesidad bordea 42,5% y 10% respectivamente, siendo mayor en varones.<sup>30</sup> Hay reportes que sugieren una fuerte y positiva relaci&oacute;n entre obesidad y el tama&ntilde;o prost&aacute;tico.<sup>31</sup></font></p>  	    ]]></body>
<body><![CDATA[<p style='line&#45;height:normal'><font face="verdana" size="2">El peso corporal, IMC y la circunferencia de cintura se han asociado positivamente con el volumen prost&aacute;tico.<sup>31</sup> Adem&aacute;s, diferentes medidas antropom&eacute;tricas se han intentado correlacionar con el volumen prost&aacute;tico, abriendo controversia entre cu&aacute;l ser&iacute;a la que mejor se correlaciona, hall&aacute;ndose resultados diferentes.<sup>10&#45;14</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">El ICC es una medida de obesidad central, relacionada con el grado de adiposidad visceral y cambios en el metabolismo hormonal.<sup>26</sup> La medida en que la obesidad puede influir en HPB independientemente de las hormonas esteroides sexuales es poco claro, el incremento de la adiposidad promueve una mayor aromatizaci&oacute;n de testosterona en estr&oacute;genos, contribuyendo a la patog&eacute;nesis de HPB.<sup>32</sup> Hammarsten, sugiere que HPB puede estar condicionada por la resistencia a insulina, secundaria a hiperinsulinemia, como posible factor etiol&oacute;gico para el agrandamiento prost&aacute;tico.<sup>33</sup> Los altos niveles de insulina pueden inducir el crecimiento prost&aacute;tico a trav&eacute;s de una variedad de mecanismos relacionados con el factor de crecimiento tipo insulina (IGF), el cual aumenta la proliferaci&oacute;n celular e induce apoptosis en diversos tejidos.<sup>33</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">Asimismo, estudios observacionales sugieren que el estr&eacute;s oxidativo e inflamaci&oacute;n, promovidos por el s&iacute;ndrome metab&oacute;lico, pueden activar v&iacute;as proliferativas benignas siendo responsable de la asociaci&oacute;n con HPB.<sup>34</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">Fritschi, en un estudio de casos y controles, realizado en 869 australianos, no encontr&oacute; asociaci&oacute;n entre obesidad, estilos de vida y HPB. Asimismo, al evaluar los niveles hormonales indirectamente no encontr&oacute; asociaci&oacute;n.<sup>23</sup> Aunque no se han realizado ensayos cl&iacute;nicos sobre el impacto de los cambios de estilo de vida en HPB, estos representan una novedosa oportunidad de modificar la enfermedad.<sup>34</sup></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">No se encontraron trabajos que intenten correlacionar medidas antropom&eacute;tricas con el peso del adenoma prost&aacute;tico. Todos los pacientes evaluados eran obesos (ICC&gt;0.9); sin embargo, los resultados obtenidos nos indican la existencia de una leve correlaci&oacute;n inversa entre ICC y el peso del adenoma prost&aacute;tico, siendo esta no significativa; lo cual guarda congruencia con estudios realizados en cohortes de gran volumen de pacientes.<sup>21&#45;23</sup> Estos resultados nos indican que si bien es cierto, la obesidad tiende a favorecer el crecimiento prost&aacute;tico, este no se correlaciona con el crecimiento r&aacute;pido caracter&iacute;stico de HPB.</font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">&nbsp;</font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b><font size="3">CONCLUSI&Oacute;N</font></b></font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">No se encontr&oacute; correlaci&oacute;n entre el &iacute;ndice cintura cadera y el peso de adenoma prost&aacute;tico.</font></p>  	    <p style='line&#45;height:normal'><font face="verdana" size="2">&nbsp;</font></p>  	     <p style='line&#45;height:normal'><font face="verdana" size="2"><b><font size="3">REFERENCIAS    BIBLIOGR&Aacute;FICAS</font></b></font></p>  	     ]]></body>
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<year>2012</year>
<volume>61</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>560-70</page-range></nlm-citation>
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</back>
</article>
