title: Scientific literature among smoking and respiratory system: repercussion and collaboration.
abstract: OBJECTIVE
  To analyze the distribution of the production, repercussion and co-authorship of articles on smoking in the «respiratory system» category through the Science Citation Index Expanded (SCI-E) and their inclusion in the first quartile of the Journal Citation Report (JCR).
  
  
  METHODS
  The literature search was performed in the SCI-E. Articles were selected for 2001-2010 for «respiratory system» using the descriptors «smok*» and «tobac*».
  
  
  RESULTS
  We found 1,858 articles (ignoring collaboration) on the topic of smoking. The median number of published articles by five-year period was higher for the 2006-2010 period vs. the 2001-2005 period; in contrast, the number of citations and the citation index was higher for documents published in the first five-year period. Some 40.47% (ignoring collaboration) of the articles (752 documents, ignoring collaboration) were published in first quartile journals. We found very well established and cohesive co-authorship networks.
  
  
  CONCLUSIONS
  Articles on smoking in the area of respiratory medicine increased in this time period, with 40% of the total documents in journals in the first quartile of the JCR. The citation rate was high, with the EU-27 countries having higher impact and repercussion. We found very well established and cohesive co-authorship networks.
authors.affiliation: Servicio de Neumología, Hospital Universitario 12 de Octubre, Madrid, España. igo01m@gmail.com
authors.forename: José Ignacio
authors.initials: JI
authors.lastname: de Granda-Orive
authors.forename: Adolfo
authors.initials: A
authors.lastname: Alonso-Arroyo
authors.forename: Francisco
authors.initials: F
authors.lastname: García-Río
authors.forename: Santiago
authors.initials: S
authors.lastname: Villanueva-Serrano
authors.forename: Andrés
authors.initials: A
authors.lastname: Pandiella
authors.forename: Rafael
authors.initials: R
authors.lastname: Aleixandre-Benavent
mesh_terms: D001319:Authorship; D015706:Bibliometrics; D003299:Cooperative Behavior; D016206:Databases, Bibliographic / Q000706:statistics & numerical data; D004526:Efficiency; D014943:Global Health; D006801:Humans; D033183:Interdisciplinary Communication; D038622:Internationality; D012108:Research Personnel; D012137:Respiratory System; D012907:Smoking