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The impact factor is a bibliometric indicator published annually in the Journal Citation Reports, and widely regarded as a quality ranking of the journals included in this database. The problem with this indicator is that the impact factor of several journals not listed in the Science Citation Index database is largely unknown. The aim of this study was to analyze the 2001 national and international impact factor of Revista Iberoamericana de Micología. The National impact factor of Revista Iberoamericana de Micología was obtained by adding the number of cites in 2001 from a total of 87 Spanish medical journals of greater scientific quality. Also, bibliographical references from Spanish journals indexed in the 2001 Journal Citation reports database have been included to determine the international impact factor of this analyzed journal. Revista Iberoamericana de Micología received a total of 62 cites from published articles in 1999 to 2001, coming from 20 different journals, being their self-citation index 10.1%. The journal with the highest number of cites to Revista Iberoamericana de Micología was Journal of Clinical Microbiology, with 12 cites (19.3%). According to this findings the national and international impact factor of Revista Iberoamericana de Micología was 0.266 and 0.606, respectively. The impact factor of Revista Iberoamericana de Micología, although not included in the Science Citation Index database, was higher than other Journal Citation Reports. Moreover, Revista Iberoamericana de Micología received most of its citations from high impact factor journals included in the Journal Citation Reports database. These data support the international recognition of the scientific level of the journal.

Background and Objective: The 2001 edition of the Journal Citation Reports (JCR) includes only 13 Spanish medical journals. The impact factor (IF) of the rest of Spanish medical journals is unknown. The aim of this study is to determine the IF of the main Spanish medical journals, taking also into account the references from journals not covered by the SCI., Material and Method: A set of 87 Spanish medical journals was selected from the national database IME and other international databases. All citable articles published in these journals in 2001 were analyzed, extracting their bibliographic references to articles published in 1999, 2000 and 2001. The indicators obtained for each journal were the number of cites, the IF and the immediacy index., Results: Among the 87 source journals, 74 were not included in the JCR. From them, 5,388 bibliographic references were examined, identifying the journals cited. Final indicators were obtained adding these results to the ones obtained by using the Science Citation Index. The most cited journal was Medicina Clinica (768 cites), and the highest IF were attained by Histology and Histopathology (IF = 1.866), International Journal of Developmental Biology (IF = 1.654) and Medicina Clinica (IF = 1.125)., Conclusions: This work has permitted to obtain the IF of 87 Spanish medical journals. Already detected in previous works, the leadership of the journal Medicina Clinica in Spanish medicine is confirmed. Spanish medical journals published in English have received a small number of cites from the ones published in Spanish. A low impact factor is not necessarily related to lack of quality, merit or relevance.