title: Rating Pakistani medical journals using the principles of citation analysis.
abstract: OBJECTIVE
  To quantify the impact of Pakistani Medical Journals using the principles of citation analysis.
  
  
  METHODS
  References of articles published in 2006 in three selected Pakistani medical journals were collected and examined. The number of citations for each Pakistani medical journal was totalled. The first ranking of journals was based on the total number of citations; second ranking was based on impact factor 2006 and third ranking was based on the 5-year impact factor. Self-citations were excluded in all the three ratings.
  
  
  RESULTS
  A total of 9079 citations in 567 articles were examined. Forty-nine separate Pakistani medical journals were cited. The Journal of the Pakistan Medical Association remains on the top in all three rankings, while Journal of College of Physicians and Surgeons-Pakistan attains second position in the ranking based on the total number of citations. The Pakistan Journal of Medical Sciences moves to second position in the ranking based on the impact factor 2006. The Journal of Ayub Medical College, Abbottabad moves to second position in the ranking based on the 5-year impact factor.
  
  
  CONCLUSIONS
  This study examined the citation pattern of Pakistani medical journals. The impact factor, despite its limitations, is a valid indicator of quality for journals.
authors.affiliation: Army Medical College, Rawalpindi, Pakistan. midrarullah2007@yahoo.com
authors.forename: Midrar
authors.initials: M
authors.lastname: Ullah
authors.forename: Idrees Farooq
authors.initials: IF
authors.lastname: Butt
mesh_terms: D000043:Abstracting and Indexing; D015706:Bibliometrics; D016206:Databases, Bibliographic / Q000706:statistics & numerical data*; D006801:Humans; D010154:Pakistan; D010380:Peer Review; D010506:Periodicals as Topic / Q000706:statistics & numerical data*; D011643:Publishing / Q000592:standards / Q000706:statistics & numerical data*; D011786:Quality Control; D012015:Reference Standards; D012189:Retrospective Studies