<?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>0187-5779</journal-id>
<journal-title><![CDATA[Terra Latinoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Terra Latinoam]]></abbrev-journal-title>
<issn>0187-5779</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de la Ciencia del Suelo A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-57792023000100503</article-id>
<article-id pub-id-type="doi">10.28940/terra.v41i0.1626</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Monitoreo de Temperatura Mediante Red de Sensores para Mejorar el Uso del Agua en la Agricultura]]></article-title>
<article-title xml:lang="en"><![CDATA[Monitoring of Temperature Through a Sensor Network to Improve the Water Usage in Agriculture]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilar-González]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cárdenas-Juárez]]></surname>
<given-names><![CDATA[Marco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Ortiz]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero-Méndez]]></surname>
<given-names><![CDATA[Mauricio Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí  ]]></institution>
<addr-line><![CDATA[San Luis Potosí S.L.P]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Facultad de Agronomía y Veterinaria ]]></institution>
<addr-line><![CDATA[Soledad de Graciano Sánchez S. L. P]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>41</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-57792023000100503&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792023000100503&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792023000100503&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Las tendencias tecnológicas están presentes en distintas áreas, en el caso de la agricultura es posible encontrar aplicaciones tales como los invernaderos automatizados. Sin embargo, para gran parte de los pequeños productores de países con condiciones similares a México, este tipo de avances tecnológicos significa una inversión difícil de hacer. Afortunadamente, hoy en día, es posible mejorar la productividad del campo con tecnología de costo accesible. En este trabajo, se describe el desarrollo de dispositivos electrónicos para medir temperatura dentro de un invernadero de 1000 m2. Estos sensores tienen la capacidad de formar una red, con lo cual se obtuvo la temperatura de varios puntos dentro del invernadero. La información recopilada, fue concentrada en internet y por medio de un algoritmo de interpolación, se determinó aquellas zonas con mayor temperatura. Lo cual permitió realizar riegos puntuales y localizados para hacer uso eficiente del agua. Estas notas de investigación son la primera parte de un proyecto para desarrollar dispositivos electrónicos de costo accesible, capaces de medir las variables climáticas tales como temperatura, humedad relativa y luminosidad, entre otras. Con los datos obtenidos, se podrá calcular el coeficiente de evapotranspiración para estimar la cantidad de agua necesaria en cada zona del cultivo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: Technological trends are present in different areas, in the case of agriculture, it is possible to find applications such as automated greenhouses. However, for a large part of small producers in countries with conditions like Mexico, this type of technological advance means a difficult investment to make. Fortunately, today, it is possible to improve the productivity of the field with affordable technology. In this work, the development of electronic devices to measure the temperature inside a 1000 m2 greenhouse is described. These sensors have the capability to form a network, with which the temperature of various points within the greenhouse was obtained. The information collected was concentrated on the internet and through an interpolation algorithm, those areas with the highest temperature were determined. This allowed punctual and localized irrigation therefore making water use efficient. These research notes are the first part of a project to develop affordable electronic devices capable of measuring climatic variables such as temperature, relative humidity, and light, among others. With the data obtained, the evapotranspiration coefficient can be calculated to estimate the amount of water needed in each crop area.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[costo accesible]]></kwd>
<kwd lng="es"><![CDATA[información]]></kwd>
<kwd lng="es"><![CDATA[optimización]]></kwd>
<kwd lng="es"><![CDATA[precisión]]></kwd>
<kwd lng="en"><![CDATA[affordable cost]]></kwd>
<kwd lng="en"><![CDATA[information]]></kwd>
<kwd lng="en"><![CDATA[optimization]]></kwd>
<kwd lng="en"><![CDATA[accuracy]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="">
<collab>Arduino</collab>
<source><![CDATA[Descripción de Hardware]]></source>
<year>2022</year>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Azhari]]></surname>
</name>
<name>
<surname><![CDATA[Nasution]]></surname>
<given-names><![CDATA[T. I.]]></given-names>
</name>
<name>
<surname><![CDATA[Sinaga]]></surname>
<given-names><![CDATA[S. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Sudiati]]></surname>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Design of monitoring system temperature and humidity using DHT22 sensor and NRF24L01 based on Arduino]]></article-title>
<source><![CDATA[Journal of Physics: Conference Series]]></source>
<year>2023</year>
<volume>2421</volume>
<numero>1</numero>
<issue>1</issue>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chávez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Fuentes]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ventura-Ramos]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Uso eficiente del agua de riego por gravedad utilizando yeso y poliacrilamida]]></article-title>
<source><![CDATA[Terra Latinoamericana]]></source>
<year>2010</year>
<volume>28</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>1-8</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="">
<collab>CONAGUA (Comisión Nacional del Agua)</collab>
<source><![CDATA[Estadísticas del agua en México]]></source>
<year>2019</year>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<collab>FAO</collab>
<collab>FIDA</collab>
<collab>OMS</collab>
<collab>PMA</collab>
<collab>UNICEF</collab>
<source><![CDATA[El estado de la seguridad alimentaria y la nutrición en el mundo 2020. Transformación de los sistemas alimentarios para que promuevan dietas asequibles y saludables]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Roma, Italia ]]></publisher-loc>
<publisher-name><![CDATA[FAO]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Garcia-Lopez]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Chavez-Chavez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Jurado-Sánchez]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modelado de una red de sensores y actuadores inalámbrica para aplicaciones en agricultura de precisión]]></article-title>
<source><![CDATA[2017 IEEE Mexican Humanitarian Technology Conference (MHTC)]]></source>
<year>2017</year>
<page-range>109-16</page-range><publisher-loc><![CDATA[Puebla, México ]]></publisher-loc>
<publisher-name><![CDATA[IEEE]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Iida]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Kumamoto]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Nakamura]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Ueda]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mobile robot for environmental measurement in Greenhouse]]></article-title>
<source><![CDATA[Journal of the Institute of Industrial Applications Engineers]]></source>
<year>2020</year>
<volume>8</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>33-8</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="">
<collab>ISPA (International Society of Precision Agriculture)</collab>
<source><![CDATA[Definición de Agricultura de Precisión]]></source>
<year>2021</year>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[S. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ilango]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Impact of Wireless Sensor Network in the Field of Precision Agriculture: A Review]]></article-title>
<source><![CDATA[Wireless Personal Communications]]></source>
<year>2017</year>
<volume>98</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>685-98</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kuo]]></surname>
<given-names><![CDATA[P. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Huang]]></surname>
<given-names><![CDATA[T. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Putra]]></surname>
<given-names><![CDATA[I. G. B]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparing kriging estimators using weather station data and local greenhouse sensors]]></article-title>
<source><![CDATA[Sensors]]></source>
<year>2021</year>
<volume>21</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1853</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kochhar]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Wireless sensor networks for greenhouses: An end-to-end review]]></article-title>
<source><![CDATA[Computers and Electronics in Agriculture]]></source>
<year>2019</year>
<volume>163</volume>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lloret]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Sendra]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Garcia]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Jimenez]]></surname>
<given-names><![CDATA[J. M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A wireless sensor network deployment for soil moisture monitoring in precision agriculture]]></article-title>
<source><![CDATA[Sensors]]></source>
<year>2021</year>
<volume>21</volume>
<numero>21</numero>
<issue>21</issue>
<page-range>1-24</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lugo-Espinosa]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Villavicencio-Pérez]]></surname>
<given-names><![CDATA[G. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz-Luna]]></surname>
<given-names><![CDATA[S. A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Paquete tecnológico para el monitoreo ambiental en invernaderos con el uso de hardware y software libre]]></article-title>
<source><![CDATA[Terra Latinoamericana]]></source>
<year>2014</year>
<volume>32</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>77-84</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<collab>Ministerio del Ambiente</collab>
<source><![CDATA[Guía para el muestreo de suelos. En el marco del decreto supremo No 002-2013-MINAM, Estándares de calidad ambiental (ECA) para suelo]]></source>
<year>2014</year>
<publisher-loc><![CDATA[Lima, Perú ]]></publisher-loc>
<publisher-name><![CDATA[Ministerio del Ambiente]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Negrete]]></surname>
<given-names><![CDATA[J. C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Precision agriculture in Mexico; Current Status and Perspectives]]></article-title>
<source><![CDATA[International Journal of Horticulture]]></source>
<year>2017</year>
<volume>7</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>75-81</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Puspitasari]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Perdana]]></surname>
<given-names><![CDATA[R. H. Y]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Real-time monitoring and automated control of greenhouse using wireless sensor network: Design and implementation]]></article-title>
<source><![CDATA[2018 International Seminar on Research of Information Technology and Intelligent Systems (ISRITI)]]></source>
<year>2018</year>
<page-range>362-6</page-range><publisher-loc><![CDATA[Yogyakarta, Indonesia ]]></publisher-loc>
<publisher-name><![CDATA[IRSI]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rambauth-Ibarra]]></surname>
<given-names><![CDATA[G. E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Agricultura de Precisión: La integración de las TIC en la producción Agrícola]]></article-title>
<source><![CDATA[Computer and Electronic Sciences: Theory and Applications]]></source>
<year>2022</year>
<volume>3</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>34-8</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ramírez-Barraza]]></surname>
<given-names><![CDATA[B. A.]]></given-names>
</name>
<name>
<surname><![CDATA[González-Estrada]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Valdivia-Alcalá]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Salas-González]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Salazar]]></surname>
<given-names><![CDATA[J. A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tarifas Eficientes para el Agua de Uso Agrícola en la Comarca Lagunera]]></article-title>
<source><![CDATA[Revista Mexicana de Ciencias Agrícolas]]></source>
<year>2019</year>
<volume>10</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>539-50</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Santillán]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Rentería-Rodríguez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Agricultura de precisión]]></source>
<year>2018</year>
<publisher-loc><![CDATA[Ciudad de México, México ]]></publisher-loc>
<publisher-name><![CDATA[Oficina de Información Científica y Tecnológica para el Congreso de la Unión (INCyTU)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Theopoulos]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Boursianis]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Koukounaras]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Samaras]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prototype Wireless Sensor Network for real-time measurements in hydroponics cultivation]]></article-title>
<source><![CDATA[2018 7th International Conference on Modern Circuits and Systems Technologies (MOCAST)]]></source>
<year>2018</year>
<page-range>1-4</page-range><publisher-loc><![CDATA[Thessaloniki, Greece ]]></publisher-loc>
<publisher-name><![CDATA[IEEE]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="book">
<collab>The Mathworks</collab>
<source><![CDATA[MATLAB User´s Guide]]></source>
<year>2023</year>
<publisher-loc><![CDATA[Natick, MA, USA ]]></publisher-loc>
<publisher-name><![CDATA[The Mathworks Inc]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="">
<collab>ThingSpeak</collab>
<source><![CDATA[Internet of Things. Environmental Monitoring]]></source>
<year>2023</year>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zamani]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Azadi]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Mortazavi]]></surname>
<given-names><![CDATA[S. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Balali]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Moghaddam]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Jurik]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The impact of water-pricing policies on water productivity: Evidence of agriculture sector in Iran]]></article-title>
<source><![CDATA[Agricultural Water Management]]></source>
<year>2021</year>
<volume>245</volume>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zermeño-González]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cruz-Santes]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Munguía-López]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Catalán-Valencia]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Campos-Magaña]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Cortés-Bracho]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efecto del sistema de riego y clima en la eficiencia del uso del agua de nogal pecanero]]></article-title>
<source><![CDATA[Terra Latinoamericana]]></source>
<year>2014</year>
<volume>32</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-11</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[He]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of idw and physically based idew method in hydrological modelling for a large mountainous watershed, northwest China]]></article-title>
<source><![CDATA[River Research and Applications]]></source>
<year>2017</year>
<volume>33</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>912-24</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
