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Dear Editor, We have read with interest the paper by MezonesHolguin et al., 2014 [1] recently published in this journal, reporting the cost effectiveness estimates for pneumococcal conjugated vaccines (PCVs) in Peru. After careful examination of the analysis, we identify some methodological inconsistencies, which we believe would make this study insufficient for decision making. A detailed discussion of these concerns is presented below.

Response to the cost effectiveness analysis of pneumococcal conjugated vaccines in Peru