To the Editor: The systematic review and meta-analysis of the effects of erythropoiesis-stimulating agents (ESAs) in the treatment of cancer-associated anemia by Dr Bennett and colleagues1 was largely based on our previously published Cochrane review,2,3 supplemented with additional data from the literature. We have a number of concerns about the study methods and data.
Erythropoiesis-Stimulating Agents in the Treatment of Cancer-Associated Anemia. JAMA. 2008;300(24):2854–2857. doi:10.1001/jama.2008.868
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