Algorithm of URL decay study. MEDLINE records from 1994 to 2006 were searched for the presence of a URL. 10,208 URLs were examined for the study. A random sample of 650 URLs were checked manually to determine accuracy of information in the Website.
Ducut et al. BMC Medical Informatics and Decision Making 2008 8:23 doi:10.1186/1472-6947-8-23