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Fraction of marketed drugs with a Tversky similarity >0.8 to at least one molecule in the stated collections. The comparison was against Recon2 (1112 molecules), streptome DB (Lucas et al., 2013) (2400 molecules) and a random subset of 10,000 molecules drawn from the ZINC (Irwin and Shoichet, 2005) database. Colors in this and the following three figures are labeled by the points for α = 2.
