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. 2013 Dec 6;10(3):607–614. doi: 10.4161/hv.27426

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Copyright © 2014 Landes Bioscience

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graphic file with name hvi-10-607-g1.jpg — Figure 1. (A) Incidence Rate Ratio (Term Infants). (B) Incidence Rate Ratio (Preterm Infants). Legend reflects source of data. Ratio calculated by dividing reported incidence rate by referent incidence rate. No rates were reported for Calgary for preterm infants >3 mo of age. Data included in this figure were calculated from all studies available in the English-language medical literature (1998–2012, National Library of Medicine), which contained the following: data available to enable a calculation of the incidence rate ratio, data for infants <3 mo of age, data for infants 3 to <6 mo of age, and a referent group defined as infants 6–12 mo of age. *Incidence rate ratio only available for those born before the start of the RSV season; the exposure time varied for those born during the RSV season.