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[Correspondence] Oseltamivir for influenza

Meta-analyses of individual patient data hold the potential of offering new insights into old data, but the Article1 by Joanna Dobson and colleagues fails to do this, presenting no new data on the potential treatment effect of oseltamivir in reducing the risk of influenza complications or admittance to hospital. Instead, the authors provide only new interpretations of already public data.2 We are concerned, however, that Dobson and colleagues’ interpretation of their results1 seems to be driven by a methodology not described in the methods section of their Article.