<?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>1727-897X</journal-id>
<journal-title><![CDATA[MediSur]]></journal-title>
<abbrev-journal-title><![CDATA[Medisur]]></abbrev-journal-title>
<issn>1727-897X</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de Cienfuegos, Centro Provincial de Ciencias Médicas, Provincia de Cienfuegos.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1727-897X2023000100050</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización de la vida sexual de adultos mayores de un área de salud]]></article-title>
<article-title xml:lang="en"><![CDATA[Characterization of older adults' sexual life in a health area]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Benítez García]]></surname>
<given-names><![CDATA[Juan Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Camero Machín]]></surname>
<given-names><![CDATA[Julio César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cuello Ávila]]></surname>
<given-names><![CDATA[Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Curbelo Fajardo]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Provincial Clínico Quirúrgico Docente Dr. León Cuervo Rubio  ]]></institution>
<addr-line><![CDATA[Pinar del Río ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Policlínico Universitario Raúl Sánchez  ]]></institution>
<addr-line><![CDATA[Pinar del Río ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2023</year>
</pub-date>
<volume>21</volume>
<numero>1</numero>
<fpage>50</fpage>
<lpage>61</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1727-897X2023000100050&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1727-897X2023000100050&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1727-897X2023000100050&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Fundamento:  la sexualidad en el anciano es un factor esencial en el mantenimiento de su calidad de vida.  Objetivo:  caracterizar la vida sexual de adultos mayores de un área de salud.  Métodos:  se realizó un estudio descriptivo y trasversal en el consultorio 163 del Policlínico Universitario Raúl Sánchez, de Pinar del Río en el periodo comprendido entre septiembre del 2020 y septiembre del 2021. El universo de trabajo estuvo integrado por 104 adultos mayores y la muestra por 72 ancianos, seleccionados mediante muestreo intencional por criterios. El instrumento utilizado fue la entrevista; los datos obtenidos fueron llevados a una encuesta que con preguntas cerradas fue aplicado personalmente a cada uno de los integrantes del estudio. Se analizaron las siguientes variables: sexo, estado civil, escolaridad, vida sexual, técnicas sexuales preferidas, funcionamiento sexual, causas que impiden la realización del acto sexual, enfermedades asociadas y consumo de medicamentos.  Resultados:  existió predominio del nivel de escolaridad primario, el estado civil sin parejas, el sexo femenino y la inactividad sexual; prevaleció el coito vaginal como forma más frecuente de manifestar la actividad sexual. Más del 90 % de los hombres presenta alguna dificultad en la vida sexual. El 22, 5 % presenta dificultades debido a enfermedades orgánicas.  Conclusiones:  es falso que el anciano sea un ente desprovisto de interés por la vida sexual, pero está afectada por varios factores, entre los que destacan las enfermedades orgánicas y la falta de pareja.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Background: sexuality in the elderly is an essential factor in maintaining their quality of life.  Objective: to characterize the sexual life of older adults in a health area.  Methods: a descriptive and cross-sectional study was carried out in office 163 of the Raúl Sánchez University Polyclinic, in Pinar del Río in the period between September 2020 and September 2021. The universe of work was made up of 104 older adults and the sample consisted of 72 elderly, by means of intentional sampling by criteria. The instrument used was the interview; the data obtained were taken to a survey that with closed questions was personally applied to each of the study members. The following variables were analyzed: sex, marital status, education, sexual life, preferred sexual techniques, sexual functioning, causes that prevent the performance of the sexual act, associated diseases and drug use.  Results: there was a predominance of primary school level, marital status without partners, female sex and sexual inactivity; vaginal intercourse predominated as the most frequent way of manifesting sexual activity. More than 90 % of men have some difficulty in sexual life. 22.5% present difficulties due to organic diseases.  Conclusions: it is false that the elderly is an entity devoid of interest in sexual life, but it is affected by several factors, among which organic diseases and lack of a partner stand out.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[anciano]]></kwd>
<kwd lng="es"><![CDATA[sexualidad]]></kwd>
<kwd lng="es"><![CDATA[atención primaria de salud]]></kwd>
<kwd lng="en"><![CDATA[aged]]></kwd>
<kwd lng="en"><![CDATA[sexuality]]></kwd>
<kwd lng="en"><![CDATA[primary health care]]></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[Herrera]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mitos y estereotipos en la sexualidad del adulto mayor]]></article-title>
<source><![CDATA[MEDWAVE]]></source>
<year>2004</year>
<volume>4</volume>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tessler]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Schumn]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Laumann]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Levinson]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[O&amp;apos;Muircheartaigh]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Laumann]]></surname>
<given-names><![CDATA[LJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A study of sexuality and health among older adults in the United States]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2007</year>
<volume>357</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>762-74</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[Guadarrama]]></surname>
<given-names><![CDATA[RM]]></given-names>
</name>
<name>
<surname><![CDATA[Ortiz]]></surname>
<given-names><![CDATA[ZM]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[CY]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[PA.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Características de la actividad sexual de los adultos mayores y su relación con su calidad de vida.]]></article-title>
<source><![CDATA[Revista deEspecialidades Médico-Quirúrgicas]]></source>
<year>2010</year>
<volume>15</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>72-9</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[Cala Rosabal]]></surname>
<given-names><![CDATA[LY]]></given-names>
</name>
<name>
<surname><![CDATA[Peña Infante]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Villanueva Batista]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Cala Peña]]></surname>
<given-names><![CDATA[RM.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Caracterización del comportamiento sexual de los adultos mayores de un área de salud]]></article-title>
<source><![CDATA[Medimay]]></source>
<year>2022</year>
<volume>29</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>229-39</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[Laffita Labori]]></surname>
<given-names><![CDATA[AK]]></given-names>
</name>
<name>
<surname><![CDATA[Córdova García]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Consuegra Córdova]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz Benítez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[LLorente Columbié]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intervención educativa sobre sexualidad durante la ancianidad en Moa, Holguín, Cuba.]]></article-title>
<source><![CDATA[CCM]]></source>
<year>2018</year>
<volume>22</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>287-97</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[Monteagudo Peña]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Lastres Castro]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Ledón Llanes]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez Alzugaray]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Ovies Carballo]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez Seijas]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cambios en la erección en adultos mayores, su relación con la testosterona sérica y otros factores]]></article-title>
<source><![CDATA[Rev Cubana Endocrinol]]></source>
<year>2016</year>
<volume>27</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>4-16</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[Cambão]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Sousa]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Mimoso]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Correia]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Sobral]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[QualiSex: estudio de la asociación entre calidad de vida y sexualidad en ancianos en una población de Oporto.]]></article-title>
<source><![CDATA[Rev Port Med General Fam]]></source>
<year>2019</year>
<volume>35</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>12-20</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[Zhong]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Wroblewski]]></surname>
<given-names><![CDATA[KE]]></given-names>
</name>
<name>
<surname><![CDATA[McClintock]]></surname>
<given-names><![CDATA[MK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sensory Dysfunction and Sexuality in the U S. Population of Older Adults]]></article-title>
<source><![CDATA[J Sex Med[Internet]]]></source>
<year>2018</year>
<volume>15</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>502-9</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[Smith]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Grabovac]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Veronese]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Koyanagi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Jackson]]></surname>
<given-names><![CDATA[SE.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Participation in Physical Activity is Associated with Sexual Activity in Older English Adults.]]></article-title>
<source><![CDATA[Int J Environ Res Salud Pública]]></source>
<year>2019</year>
<volume>16</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>489</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[Santos Meneses]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Dos Santos Fânia]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Cendoroglo Seabra]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sexualidad y dolor crónico en mujeres longevas: descripción de factores interferenciales.]]></article-title>
<source><![CDATA[Rev Dor]]></source>
<year>2015</year>
<volume>16</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>48-52</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[Monteiro]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Humboldt]]></surname>
<given-names><![CDATA[SV]]></given-names>
</name>
<name>
<surname><![CDATA[Leal]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Creencias y actitudes de cuidadores formales sobre la sexualidad de los ancianos]]></article-title>
<source><![CDATA[Psicología Salud y Enfermedad]]></source>
<year>2018</year>
<volume>19</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>101-9</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[Cremé Lobaina]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez Cortés]]></surname>
<given-names><![CDATA[JT]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez Hechavarría]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Fernández González]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Riveaux Verdecia]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Salud sexual en ancianos de un consultorio médico de la familia]]></article-title>
<source><![CDATA[MEDISAN]]></source>
<year>2017</year>
<volume>21</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>857-65</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[Ramos Rodríguez]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Portilho]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Tieppo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Chambo Filho]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analysis of the sexual behavior of elderly women treated at a gynecological outpatient clinic]]></article-title>
<source><![CDATA[Rev Bras Geriatr Gerontol]]></source>
<year>2018</year>
<volume>21</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>724-30</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[Ramos Caballero]]></surname>
<given-names><![CDATA[EJ]]></given-names>
</name>
<name>
<surname><![CDATA[Melguizo Herrera]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Factores asociados a actitudes sobre la sexualidad en la vejez en Medellín, Colombia]]></article-title>
<source><![CDATA[Ciencias Sociales y Humanas]]></source>
<year>2017</year>
<volume>17</volume>
<numero>33</numero>
<issue>33</issue>
<page-range>267-75</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[Paz González]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez Roche]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez Oves]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Machado Machado]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Santiesteban Pineda]]></surname>
<given-names><![CDATA[DM.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Representación social de la sexualidad de los adultos mayores]]></article-title>
<source><![CDATA[Rev Hum Med]]></source>
<year>2018</year>
<volume>18</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>83-95</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[Torres Mencía]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez Martín]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Percepciones de la sexualidad en personas mayores: una revisión sistemática de estudios cualitativos]]></article-title>
<source><![CDATA[Rev Esp Salud Pública]]></source>
<year>2019</year>
</nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pereira]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Serrano]]></surname>
<given-names><![CDATA[JP]]></given-names>
</name>
<name>
<surname><![CDATA[de Vries]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Afonso]]></surname>
<given-names><![CDATA[RM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aging Perceptions in Older Gay and Bisexual Men in Portugal A Qualitative Study]]></article-title>
<source><![CDATA[Int J Aging Hum Dev]]></source>
<year>2018</year>
<volume>87</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>5-32</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[Melguizo-Herrera]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez-Romero]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Cabarcas-Mendoza]]></surname>
<given-names><![CDATA[MV]]></given-names>
</name>
<name>
<surname><![CDATA[Calvo-Rodríguez]]></surname>
<given-names><![CDATA[RS]]></given-names>
</name>
<name>
<surname><![CDATA[Flórez-Almanza]]></surname>
<given-names><![CDATA[OP]]></given-names>
</name>
<name>
<surname><![CDATA[Campo-Arias]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Validez y confiabilidad del cuestionario de actitudes hacia la sexualidad en la vejez en adultos mayores en Cartagena, Colombia.]]></article-title>
<source><![CDATA[REV COLOMB PSIQUIAT]]></source>
<year>2015</year>
<volume>44</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>87-92</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
