The correction of articles in electronic journals published in 2003 and included in the Tokyo Medical University Library holdings was examined. The polices of publishes differed as to whether they included corrected articles in the electronic journals and whether they linked the corrected article to the original article. While a standard format for linking the original and corrected articles and publishing the corrected article as an HTML or PDF document tended to be used, the differences in publishers' policies deeply affect the treatment of corrected articles. While differences in publishing policies are unavoidable, corrected articles should be included in electronic journals and should be linked to the original article. Moreover, free access to the corrected articles should be given to journal readers. Some original articles are corrected based on the contents of the corrected article; whether the original article should actually be altered is an important issue and should be discussed among researchers, publishers and librarians.