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Correction: In “In vitro efficacy of an ophthalmic drug combination against corneal pathogens of horses”, published January 2008 (Am J Vet Res 2008;69:101–107), the last sentence in the results section of the abstract should read as follows:
Antiproteinase activity of serum was a concentration-dependent event, which enabled serum to achieve significantly greater activity than the drug combination after 3.5 and 4 hours of incubation for the gelatin and collagen I assays, respectively.
