title: [Citation analysis of part of features in the Chinese Journal of Internal Medicine and other 3 foreign journals].
abstract: OBJECTIVE
  To analysis the discrepancy of citations in different features of the Chinese Journal of Internal Medicine (Chin J Intern Med) and other 3 foreign journals (BMJ, JAMA, Ann Intern Med).
  
  
  METHODS
  Citations of articles published from 1998 to 2002 in major features of the four journals were calculated.
  
  
  RESULTS
  In the 5 years, the average number of citation original articles in Chin J Intern Med was 6.55, in BMJ 15.78, in JAMA 34.73 and Ann Intern Med 30.37; that of commentary articles was 3.82, 9.26, 18.38 and 13.79, respectively. In the recent five years, 86% citations were devoted to English language articles, 14% Chinese language articles, less than 1% Japanese articles, few other language articles. Price index analysis indicated the value for BMJ, JAMA, Ann Intern Med and Chin J Intern Med was 0.58, 0.57, 0.42 and 0.50, respectively.
  
  
  CONCLUSIONS
  The discrepancy in average number of citation articles in different features of the four journals is not significantly different, even in time of their citation. The citation of articles is not varied in languages in Chin J Intern Med.
authors.affiliation: Chinese Journal of Internal Medicine, Beijing 100710, China. dingyq@163bj.com
authors.forename: Yun-qiu
authors.initials: YQ
authors.lastname: Ding
authors.forename: Jin
authors.initials: J
authors.lastname: Li
authors.forename: Su-ning
authors.initials: SN
authors.lastname: You
mesh_terms: D015706:Bibliometrics; D002681:China; D007388:Internal Medicine; D010506:Periodicals as Topic / Q000706:statistics & numerical data*; D006113:United Kingdom; D014481:United States