. "A longitudinal, retrospective cohort analysis of 00,000 articles...published in 00 society-run biomedical research journals...between February 0000 and January 0000 reveals a 00.0% reduction in full-text...HTML...article downloads and a 00.0% reduction in...PDF...article downloads from the journals' websites when U.S. National Institutes of Health-sponsored articles...become freely available from the PubMed Central repository....The relationship between free access and subscription cancellation behavior is not well understood." Davis predicts that increased downloads will lead to increased cancellations, but cites no evidence that they have already done so. 