<?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>0186-1042</journal-id>
<journal-title><![CDATA[Contaduría y administración]]></journal-title>
<abbrev-journal-title><![CDATA[Contad. Adm]]></abbrev-journal-title>
<issn>0186-1042</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Contaduría y Administración]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0186-10422017000200505</article-id>
<article-id pub-id-type="doi">10.1016/j.cya.2017.01.002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evolución de la capacidad tecnológica en México. Aplicación del análisis estadístico multivariante de cluster]]></article-title>
<article-title xml:lang="en"><![CDATA[Evolution of state clusters related with technological capability in Mexico: Application of a multivariate statistical analysis of cluster]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Hernández]]></surname>
<given-names><![CDATA[Carla Carolina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lara Gómez]]></surname>
<given-names><![CDATA[Graciela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez Hernández]]></surname>
<given-names><![CDATA[Denise]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<volume>62</volume>
<numero>2</numero>
<fpage>505</fpage>
<lpage>527</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0186-10422017000200505&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0186-10422017000200505&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0186-10422017000200505&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo del presente trabajo es analizar cómo se distribuye la capacidad tecnológica entre las entidades federativas de México y examinar su evolución. Para ello, se desarrolló un estudio empírico utilizando la técnica de análisis estadístico multivariante de cluster, con base en el set de indicadores propuesto por Cepal (2007) y recopilando los datos de diversas fuentes públicas del país para los años 2006 y 2012, con el fin de estudiar la evolución en el tiempo de dichos clusters, tratando de ver qué estados han podido mudarse a un cluster situado en posiciones más avanzadas y cuáles han retrocedido en dicho periodo. Los resultados muestran la existencia de 7 grupos de estados caracterizados por distintos niveles de capacidad tecnológica, y se detectan también 3 entidades que evolucionaron a un cluster más avanzado, tanto en lo referente a la capacidad de absorción e innovación, como en lo relativo a las capacidades tecnológicas de infraestructura.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective of this work is to analyze how the technological capability is distributed between the Mexican states and to examine their evolution. To this end, an empirical study was developed using the cluster multivariate statistical analysis technique, based on the set of indicators proposed by Cepal (2007), and gathering the data from various public sources in the country during years 2006 and 2012. This was done to study the evolution of said conglomerates, trying to see which states have been able to move to a conglomerate located in more advanced positions and which have retreated within said period. The results show the existence of 7 groups of states characterized by different levels of technological capability. Furthermore, 3 entities that evolved into a more advanced conglomerate &#8211; regarding absorption and innovation capability, as well as infrastructure technological capability &#8211; are also detected.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Capacidades tecnológicas]]></kwd>
<kwd lng="es"><![CDATA[Clusters estatales]]></kwd>
<kwd lng="es"><![CDATA[Análisis estadístico multivariante]]></kwd>
<kwd lng="en"><![CDATA[Technological capabilities]]></kwd>
<kwd lng="en"><![CDATA[State conglomerates]]></kwd>
<kwd lng="en"><![CDATA[Multivariate statistical analysis]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Álvarez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estadística multivalente y no paramétrica con SPSS]]></source>
<year>1995</year>
<publisher-loc><![CDATA[Madrid ]]></publisher-loc>
<publisher-name><![CDATA[Díaz de Santos]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[In search of a useful measure of technological innovation (to make economists happy without discontenting technologists)]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Archibugi]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Technological Forecasting and Social Change]]></source>
<year>1988</year>
<volume>34</volume>
<page-range>253-77</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The technology clubs: The distribution of knowledge across nations]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Archibugi]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Castellacci]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Research Policy]]></source>
<year>2008</year>
<volume>37</volume>
<page-range>1659-73</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[A new indicator of technological capabilities for developed and developing countries (ArCo)]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Archibugi]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Coco]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[World Development]]></source>
<year>2004</year>
<volume>32</volume>
<page-range>629-54</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Measuring technological capabilities at the country level: A survey and a menu for choice]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Archibugi]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Coco]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Research Policy]]></source>
<year>2005</year>
<volume>34</volume>
<page-range>175-94</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Measuring technological change through patents and innovation surveys]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Archibugi]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Pianta]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Technovation]]></source>
<year>1996</year>
<volume>16</volume>
<page-range>451-68</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Biggs]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Shah]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Srivastava]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Technological capabilities and learning in African enterprises]]></source>
<year>1995</year>
<publisher-loc><![CDATA[Washington, D.C. ]]></publisher-loc>
<publisher-name><![CDATA[The World Bank]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Clusters de innovación tecnológica en Latinoamérica]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blázquez de le Hera]]></surname>
<given-names><![CDATA[M. L.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Ochoa Mayor]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[GCG Georgetown University]]></source>
<year>2009</year>
<volume>3</volume>
<page-range>16-33</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Notas sobre la cuestión del excedente en las teorías evolucionistas neoschumpeterianas]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Borrastero]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista electrónica del Instituto de Altos Estudios Sociales]]></source>
<year>2012</year>
<page-range>100-26</page-range><publisher-name><![CDATA[Universidad Nacional de General San Martín]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brunner]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Chile: informe sobre capacidades tecnológicas]]></source>
<year>2011</year>
<page-range>1-41</page-range><publisher-name><![CDATA[Instituto de Economía Política]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Una revisión del pensamiento evolucionista y el enfoque de los sistemas de innovación]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Calderón]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hartmann]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[RUDICS]]></source>
<year>2010</year>
<page-range>1-18</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<collab>Cepal</collab>
<source><![CDATA[Indicadores de capacidades tecnológicas en América Latina]]></source>
<year>2007</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Naciones Unidas]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chinaprayoon]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Science, Technology and Innovation Composite Indicators for Developing Countries]]></source>
<year>2007</year>
<publisher-loc><![CDATA[Georgia ]]></publisher-loc>
<publisher-name><![CDATA[Institute of Tecnology]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[La innovación en las empresas de Guatemala]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Close]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Garita]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[ECO Revista Académica]]></source>
<year>2011</year>
<page-range>27-36</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Technological innovation: Concept, process, typology and implications in the economy]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Diaconu]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Theoretical &amp; Applied Economics]]></source>
<year>2011</year>
<volume>18</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>127-44</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dosi]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La interpretación evolucionista de las dinámicas soio económicas]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Viale]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Las nuevas economías. De la economía evolucionista a la economía cognitiva: Más allá de las fallas de la teoría neoclásica]]></source>
<year>2008</year>
<page-range>29-44</page-range><publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Flacso México]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dutrénit]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Capdeville]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Corona]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Puchet]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Veracruz]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[El Sistema Nacional de Innovación Mexicano]]></source>
<year>2010</year>
<page-range>1-62</page-range><publisher-name><![CDATA[UAM]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<collab>Enpecyt</collab>
<source><![CDATA[Encuesta sobre la Percepción Pública de la Ciencia y la Tecnología en México]]></source>
<year>2011</year>
<publisher-name><![CDATA[INEGI]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<collab>FCCyT</collab>
<source><![CDATA[Ranking Nacional de Ciencia Tecnología e Innovación. Capacidades y Oportunidades de los sistemas estatales de CTI.]]></source>
<year>2014</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[FCCyT]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Empirical study of national technological innovation capability in Africa]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Blázquez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[SAJEMS]]></source>
<year>2012</year>
<page-range>440-63</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[La innovación tecnológica como variable determinante en la competitividad de los países]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Ochoa Mayor]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Bajo Davó]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Blázquez de la Hera]]></surname>
<given-names><![CDATA[M. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista de Economía Mundial]]></source>
<year>2012</year>
<volume>31</volume>
<page-range>137-66</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Uso y aplicación de la técnica de análisis estadístico multivariante de cluster sobre la capacidad de innovación tecnológica en Latinoamérica y España]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Ochoa Mayor]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Blázquez de la Hera]]></surname>
<given-names><![CDATA[M. L.]]></given-names>
</name>
<name>
<surname><![CDATA[López Sánchez]]></surname>
<given-names><![CDATA[J. I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Innovar]]></source>
<year>2012</year>
<volume>22</volume>
<page-range>21-40</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guzmán]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Las capacidades tecnológicas en la industria del calzado en México]]></source>
<year>2008</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[I.P.N.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martín]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Cabero]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[de Paz]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Tratamiento estadístico de datos con SPSS]]></source>
<year>2008</year>
<publisher-loc><![CDATA[España ]]></publisher-loc>
<publisher-name><![CDATA[Thomson]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Teoría Económica Evolutiva de la Empresa: ¿una alternativa a la teoría neoclásica?]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morales]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Revista Latinoamericana de Economía]]></source>
<year>2009</year>
<page-range>161-83</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="book">
<collab>PECITI</collab>
<source><![CDATA[Programa Especial de Ciencia, Tecnología e Innovación 2014-2018]]></source>
<year>2014</year>
<publisher-name><![CDATA[CONACyT]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pedroza]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Sistema de análisis estadístico con SPSS]]></source>
<year>2006</year>
<publisher-loc><![CDATA[Nicaragua ]]></publisher-loc>
<publisher-name><![CDATA[INTA]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Quiñones]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Tezanos]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[Cooperación científico-tecnológica para el desarrollo internacional: una apuesta desde la innovación]]></source>
<year>2011</year>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[México sí crece, solo que a 32 pasos diferentes]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ríos]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Excelsior]]></source>
<year>2014</year>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Development]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schumpeter]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Economic Literature]]></source>
<year>2005</year>
<page-range>108-20</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stern]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Porter]]></surname>
<given-names><![CDATA[M. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Furman]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[The Determinants of National Innovative Capability]]></source>
<year>200</year>
</nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[El desarrollo de capacidades tecnológicas y la vinculación con instituciones educativas]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Velarde]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Garza]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Coronado]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Global Conference on Business and Finance Proceedings]]></source>
<year>2011</year>
<volume>6</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1-7</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The Global Innovation Index 2014]]></article-title>
<collab>WIPO</collab>
<source><![CDATA[INSEAD]]></source>
<year>2014</year>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
