Nat. Biotechnol. 21, 1123, (2003)

The title of Table 1 incorrectly indicates the presence of data for 48 North American cities or counties. The original article, which appears in the News section of the Bioentrepreneur web portal (http://www.nature.com/bioent), does indeed contain these data. But the version reprinted here displays a truncated version of the table with ten data points: North American cities or counties that rank 1–5 and 43–48 in total annual operating costs for a biomedical research and development facility. Nature Biotechnology regrets the error.