Organizational impact in the dermatologic literature.

We revisit our citation data derived from 58,201 articles published between 1981 and 1994 in the 17 top-ranked peer-reviewed international dermatology journals to identify the institutions that house the people who have made the greatest impact on the dermatologic literature during this period. Using these citation data, we estimate an institution's impact in 2 ways. First, institutions are ranked by the gross number of citations to articles from 1981 to 1994 accurred during this same period. To recognize institutions whose articles, on average, have received higher numbers of citations, we also rank institutions by the average number of citations received by each article published by a particular institution (blended impact factor).

The impact of dermatology journals.

As the scientific literature continues to burgeon, readers must develop strategies to efficiently glean important information from the thousands of journals published each month. Citation data can provide quantitative estimates of a journal's usefulness to the scientific community. Annually, Journal Citation Reports calculates and publishes impact factors for all the journals that are indexed by the Science Citation Index. The 1993 impact factors have been calculated by dividing 1993 citations to the 1991 and 1992 published items of a particular journal by the total number of published items in that journal from 1991 and 1992.