There are two types of repeated molecules for which we retain all measurements. The first is molecules that were experimentally tested more than once, which we generally refer to as replicates. Molecules can be tested more than once because they belong to multiple libraries In addition to grouping replicate measurements, we also ensure that a single experimental measurement is not erroneously recorded twice. Entries in the combined dataset should not match in the following columns: SMSSF ID, Plate Name, Plate Well, Run Date, PriA-SSB AS % inhibition. If two entries match on these columns, the same data have been copied so one entry is removed.