title: Korea's contribution to radiological research included in Science Citation Index Expanded, 1986-2010.
abstract: OBJECTIVE
  To evaluate scientific papers published by Korean radiologists in the Science Citation Index Expanded (SCIE) radiology journals, between 1986 and 2010.
  
  
  METHODS
  The Institute for Scientific Information Web of Knowledge-Web of Science (SCIE) database was searched for all articles published by Korean radiologists, in SCIE radiology journals, between 1986 and 2010. We performed the analysis by typing "Korea" and "radiol" in the address section and selecting the subject area of "Radiology, Nuclear Medicine, and Medical Imaging" with the use of the general search function of the software. Analyzed parameters included the total number of publications, document types, journals, and institutions. In addition, we analyzed where Korea ranks, compared to other countries, in terms of the number of published articles. All these data were analyzed according to five time periods: 1986-1990, 1991-1995, 1996-2000, 2001-2005, and 2006-2010.
  
  
  RESULTS
  Overall, 4974 papers were published by Korean radiologists, in 99 different SCIE journals, between 1986 and 2010, of which 4237 (85.2%) were article-type papers. Of the total 115395 articles, worldwide, published in radiology journals, Korea's share was 3.7%, with an upward trend over time (p < 0.005). The journal with the highest number of articles was the American Journal of Roentgenology (n = 565, 13.3%). The institution which produced the highest number of publications was Seoul National University (n = 932, 22.0%).
  
  
  CONCLUSIONS
  The number of scientific articles published by Korean radiologists in the SCIE radiology journals has increased significantly between 1986 and 2010. Korea was ranked 4th among countries contributing to radiology research during the last 5 years.
authors.affiliation: Department of Radiology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul 134-701, Korea.
authors.forename: You Jin
authors.initials: YJ
authors.lastname: Ku
authors.forename: Dae Young
authors.initials: DY
authors.lastname: Yoon
authors.forename: Kyoung Ja
authors.initials: KJ
authors.lastname: Lim
authors.forename: Sora
authors.initials: S
authors.lastname: Baek
authors.forename: Young Lan
authors.initials: YL
authors.lastname: Seo
authors.forename: Eun Joo
authors.initials: EJ
authors.lastname: Yun
authors.forename: Chul Soon
authors.initials: CS
authors.lastname: Choi
authors.forename: Sang Hoon
authors.initials: SH
authors.lastname: Bae
authors.forename: Hyun
authors.initials: H
authors.lastname: Lee
authors.forename: Young-Su
authors.initials: YS
authors.lastname: Ju
mesh_terms: D015706:Bibliometrics; D035843:Biomedical Research / Q000706:statistics & numerical data*; D010506:Periodicals as Topic / Q000706:statistics & numerical data*; D011871:Radiology; D056910:Republic of Korea