[The citation analysis of Chinese Journal of Internal Medicine from 2005 to 2011].

Objective: To evaluate the academic level of Chinese Journal of Internal Medicine by analyzing its citation status by using bibliometrics method.

Methods: The distribution of articles published in Chinese Journal of Internal Medicine from January, 2005 to December, 2011 indexed by Chinese Science Citation Database (CSCD) was analyzed.

Results: A total of 2809 articles were published in Chinese Journal of Internal Medicine between January,2005 and December, 2011.

[An analysis of impact factor of Chinese Journal of Internal Medicine from 2008 to 2010].

Objective: To analyze the articles and citation published in the Chinese Journal of Internal Medicine from 2008 to 2010, in order to investigate the influence factors of impact factor (IF).

Methods: All articles published in the Chinese Journal of Internal Medicine covered by Chinese Medical Citation Index(CMCI) from 2008 to 2010 were searched and downloaded. Some article related attributions were manual added and their influences to IF were analyzed.

[Citation analysis of part of features in the Chinese Journal of Internal Medicine and other 3 foreign journals].

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.