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        "resumen" => "<span class="elsevierStyleSectionTitle">OBJECTIVE</span><p class="elsevierStyleSimplePara elsevierViewall">To analyze the network structure of collaboration between medical centers sharing authorship of scientific articles on smoking&#46;</p> <span class="elsevierStyleSectionTitle">MATERIAL AND METHODS</span><p class="elsevierStyleSimplePara elsevierViewall">Articles reporting smoking research by authors from 2 or more Spanish medical centers between 1999 and the end of 2003 were identified through the Science Citation Index&#46; The network of collaboration behind the research was analyzed and the most important measures of centrality were compared&#46; To display the data&#44; scientometric maps were constructed using UCINET and NETDRAW network analysis tools&#46;</p> <span class="elsevierStyleSectionTitle">RESULTS</span><p class="elsevierStyleSimplePara elsevierViewall">Thirty-five Spanish medical centers &#40;29 hospitals and 6 health care clinics&#41; in 8 autonomous communities were involved in 21 collaborative research projects&#46; Hospital de La Princesa was the network core institution with the highest degrees of nodal &#40;16&#41;&#44; closeness &#40;88&#46;66&#41;&#44; and betweenness &#40;39&#41; centrality&#46; Other core nodes in the network were the following hospitals&#58; de Cruces&#44; San Pedro de Alc&#225;ntara&#44; La Paz&#44; Vall d&#39;Hebron&#44; and General Yag&#252;e&#46; The autonomous communities of Castile and Leon&#44; Madrid&#44; and Catalonia were assigned positions at the core of the intercommunity collaborative network based on coauthorship of scientific papers shared among their medical centers&#46;</p> <span class="elsevierStyleSectionTitle">CONCLUSIONS</span><p class="elsevierStyleSimplePara elsevierViewall">Network analysis helps identify the most influential institutions in a scientific community that generates coauthored articles in the field of smoking research&#46; Hospital de la Princesa had the highest measures of centrality&#46; The autonomous communities of Castile and Leon&#44; Madrid&#44; and Catalonia form a highly connected&#44; cohesive subgroup within the network&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">OBJETIVO</span><p class="elsevierStyleSimplePara elsevierViewall">Analizar la red de colaboraci&#243;n cient&#237;fica que genera la coautor&#237;a de art&#237;culos cient&#237;ficos entre centros sanitarios espa&#241;oles en el &#225;rea de tabaquismo&#46;</p> <span class="elsevierStyleSectionTitle">MATERIAL Y M&#201;TODOS</span><p class="elsevierStyleSimplePara elsevierViewall">Se seleccionaron los art&#237;culos sobre tabaquismo aparecidos en Science Citation Index entre los a&#241;os 1999 a 2003&#44; en cuya autor&#237;a participaron 2 o m&#225;s centros sanitarios espa&#241;oles&#46; Se analiz&#243; la red de colaboraci&#243;n subyacente&#44; comparando las medidas m&#225;s importantes de centralidad y elaborando mapas bibliom&#233;tricos que permiten su visualizaci&#243;n&#46; Se emplearon las herramientas inform&#225;ticas para el an&#225;lisis de redes UCINET&#174; y NETDRAW&#174;&#46;</p> <span class="elsevierStyleSectionTitle">RESULTADOS</span><p class="elsevierStyleSimplePara elsevierViewall">Treinta y cinco centros sanitarios espa&#241;oles &#40;29 hospitales y 6 centros de salud&#41;&#44; pertenecientes a 8 comunidades aut&#243;nomas distintas&#44; intervinieron en 21 trabajos de colaboraci&#243;n nacional interinstitucional entre centros sanitarios&#46; El Hospital de La Princesa obtiene los valores m&#225;s altos de grado nodal &#40;16&#41;&#44; grado de proximidad normalizado &#40;86&#44;66&#41; y grado de intermediaci&#243;n &#40;39&#41;&#44; y forma parte del n&#250;cleo de la red&#44; junto con los Hospitales de Cruces&#44; San Pedro de Alc&#225;ntara&#44; La Paz&#44; Vall d&#39;Hebron y General Yag&#252;e&#46; Las comunidades aut&#243;nomas de Castilla y Le&#243;n&#44; Madrid y Catalu&#241;a son asignadas al n&#250;cleo de la red de colaboraci&#243;n intercomunitaria basada en la coautor&#237;a de trabajos cient&#237;ficos entre centros sanitarios&#46;</p> <span class="elsevierStyleSectionTitle">CONCLUSIONES</span><p class="elsevierStyleSimplePara elsevierViewall">El an&#225;lisis de redes permite identificar las instituciones m&#225;s influyentes en la red de colaboraci&#243;n cient&#237;fica que genera la coautor&#237;a de art&#237;culos cient&#237;ficos en el &#225;rea de tabaquismo&#46; El Hospital de la Princesa destaca en todas las medidas de centralidad&#46; Las comunidades aut&#243;nomas de Castilla y Le&#243;n&#44; Madrid y Catalu&#241;a configuran un subgrupo de la red altamente interconectado y cohesionado&#46;</p>"
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Vol. 43. Issue 7.
Pages 378-385 (January 2007)
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Vol. 43. Issue 7.
Pages 378-385 (January 2007)
Original Articles
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Spanish Medical Center Collaboration on Smoking Research From 1999 Through 2003 According to the Science Citation Index
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Santiago José Villanueva Serranoa,
Corresponding author
santivillanueva@wanadoo.es

Correspondence: Dr. S. Villanueva Serrano. Avda. Cortes Valencianas, 35, P127. 46015 Valencia. España
, José Ignacio de Granda Oriveb, Rafael Aleixandre Benaventc, Francisco García Ríod, Juan Carlos Valderrama Zuriánc, Adolfo Alonso Arroyoc
a Servicio de Cuidados Intensivos, Hospital General Básico de la Defensa Vázquez Bernabeu, Valencia, Spain
b Servicio de Neumología, Hospital Central de la Defensa Gómez Ulla, Madrid, Spain
c Instituto de Historia de la Ciencia y Documentación López Piñero, Universitat de València-CSIC, Valencia, Spain
d Servicio de Neumología, Hospital Universitario La Paz, Madrid, Spain
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OBJECTIVE

To analyze the network structure of collaboration between medical centers sharing authorship of scientific articles on smoking.

MATERIAL AND METHODS

Articles reporting smoking research by authors from 2 or more Spanish medical centers between 1999 and the end of 2003 were identified through the Science Citation Index. The network of collaboration behind the research was analyzed and the most important measures of centrality were compared. To display the data, scientometric maps were constructed using UCINET and NETDRAW network analysis tools.

RESULTS

Thirty-five Spanish medical centers (29 hospitals and 6 health care clinics) in 8 autonomous communities were involved in 21 collaborative research projects. Hospital de La Princesa was the network core institution with the highest degrees of nodal (16), closeness (88.66), and betweenness (39) centrality. Other core nodes in the network were the following hospitals: de Cruces, San Pedro de Alcántara, La Paz, Vall d'Hebron, and General Yagüe. The autonomous communities of Castile and Leon, Madrid, and Catalonia were assigned positions at the core of the intercommunity collaborative network based on coauthorship of scientific papers shared among their medical centers.

CONCLUSIONS

Network analysis helps identify the most influential institutions in a scientific community that generates coauthored articles in the field of smoking research. Hospital de la Princesa had the highest measures of centrality. The autonomous communities of Castile and Leon, Madrid, and Catalonia form a highly connected, cohesive subgroup within the network.

Key words:
Spain
Smoking
Scientific publications
Coauthorship
Collaboration
OBJETIVO

Analizar la red de colaboración científica que genera la coautoría de artículos científicos entre centros sanitarios españoles en el área de tabaquismo.

MATERIAL Y MÉTODOS

Se seleccionaron los artículos sobre tabaquismo aparecidos en Science Citation Index entre los años 1999 a 2003, en cuya autoría participaron 2 o más centros sanitarios españoles. Se analizó la red de colaboración subyacente, comparando las medidas más importantes de centralidad y elaborando mapas bibliométricos que permiten su visualización. Se emplearon las herramientas informáticas para el análisis de redes UCINET® y NETDRAW®.

RESULTADOS

Treinta y cinco centros sanitarios españoles (29 hospitales y 6 centros de salud), pertenecientes a 8 comunidades autónomas distintas, intervinieron en 21 trabajos de colaboración nacional interinstitucional entre centros sanitarios. El Hospital de La Princesa obtiene los valores más altos de grado nodal (16), grado de proximidad normalizado (86,66) y grado de intermediación (39), y forma parte del núcleo de la red, junto con los Hospitales de Cruces, San Pedro de Alcántara, La Paz, Vall d'Hebron y General Yagüe. Las comunidades autónomas de Castilla y León, Madrid y Cataluña son asignadas al núcleo de la red de colaboración intercomunitaria basada en la coautoría de trabajos científicos entre centros sanitarios.

CONCLUSIONES

El análisis de redes permite identificar las instituciones más influyentes en la red de colaboración científica que genera la coautoría de artículos científicos en el área de tabaquismo. El Hospital de la Princesa destaca en todas las medidas de centralidad. Las comunidades autónomas de Castilla y León, Madrid y Cataluña configuran un subgrupo de la red altamente interconectado y cohesionado.

Palabras clave:
España
Tabaquismo
Publicaciones científicas
Análisis de coautorías
Redes de colaboración
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Copyright © 2007. Sociedad Española de Neumología y Cirugía Torácica (SEPAR)
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