Access to Scientific Publications: The Scientist's Perspective
Figure 1
Availability of HIV vaccine research articles online.
Two randomly selected sets of papers were created and checked for availability online. Most of the recently published papers required subscription for access, while the “cited” set of papers (randomly selected from citations within the “recent” set) were more accessible, presumably due to journals moving articles from subscription-restricted content into open access. A small proportion of cited articles were not available online.