Figure 4.

Number of Published MEDLINE Abstracts per Year and the Percentage of Inaccessible URLs Accessed During the 30-day Period. The graph shows the number of MEDLINE abstracts published per year (blue line) against the percentage of inaccessible URLs per year of publication (red line). The availability of a URL is dependent on time after publication. A higher decay rate is seen in earlier articles.

Ducut et al. BMC Medical Informatics and Decision Making 2008 8:23   doi:10.1186/1472-6947-8-23
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